The newest X-Men movie was awesome and gave me so many Magneto/Professor X feels! So naturally I had to read some fic :D

The majority of these recs are based on the X-Men movie canon, though some, specifically the AUs, may incorporate aspects of comic canon.

In the Warnings section of each entry I have different tags, so if you are looking for something specific (like "switching" for example) just ctrl+f and enter your tag and it should highlight the relevant entries!

♥ = favorite

updated March 14, 2021

Erik Lehnsherr/Charles Xavier Recs

Title: A Particular Nuance
Author: pearl_o
Pairings: Charles/Erik
Rating: Explicit
Word Count: 1,184
Content/Warnings: bottom!charles
Summary: It takes Charles a long time to figure out why the sex is so good.
Crazy hot and super sweet PWP.

Title: Bent Over A Motel Bed
Author: helens78
Pairings: Charles/Erik
Rating: Explicit
Word Count: 1,261
Content/Warnings: road trip, established relationship, bottom!charles
Summary: Erik's spent the whole day wanting Charles, and now they're both getting what they want.
Mega sexy fic with some awesome possessive Erik.

Title: In Plain Sight
Author: scribblinlenore
Pairings: Charles/Erik
Rating: Explicit
Word Count: 1,356
Content/Warnings: AU: Alternate First Meeting, implied switching
Summary: As it happens, Charles does know how it feels to hide who he is. A stranger in a pub sees right through him.
Such a hot fic about what could have happened if Erik and Charles had met at a bar while Charles was still his smooth Oxford self.

Title: My light is electric
Author: spillednotes
Pairings: Charles/Erik
Rating: Explicit
Word Count: 1,403
Content/Warnings: rimming, bottom!erik, implied switching
Summary: In which there is a sex marathon, rimming, and Charles tops the hell out of Erik.
The writing in this is just gorgeous and so sensory. And the sex is crazy freaking hot.

Title: Backseat Driver
Author: almostnever
Pairings: Charles/Erik
Rating: Explicit
Word Count: 1,436
Content/Warnings: car!sex, bottom!charles, rough sex, road trip
Summary: "I've always heard about backseat makeouts," Charles says. "A fine old American pastime, by all accounts. Some fun, a bit of action. I want to try it. Don't you?"
Basically just super hot, sightly angry car!sex.

Title: when all of our flaws are counted
Author: all_our_heroes
Pairings: Charles/Erik
Rating: Explicit
Word Count: 1,574
Content/Warnings: airplane!sex, bathroom!sex, bottom!charles, barebacking
Summary: Chess can be a metaphor for many things, especially when it comes to them.
[Missing scene from the plane ride/chess game in Days of Future Past.]
God this was just so sexy and fantastic and heartbreaking. So perfectly in character and so believable.

Title: Glasses
Author: grim_lupine
Pairings: Charles/Erik
Rating: Explicit
Word Count: 1,648
Content/Warnings: established relationship, glasses!kink, face-fucking
Summary: Charles blinks at him bemusedly, but Erik barely notices because Charles is wearing glasses— wire-rimmed, and Erik can feel the metal humming, traces without touch the way they follow the curve of Charles’s nose and rest behind his ears.
So freaking sexy! Love the idea of Charles with wire-rimmed glasses and how that would totally turn Erik on!

Title: Pace is the Trick
Author: significantowl
Pairings: Charles/Erik
Rating: Explicit
Word Count: 1,685
Content/Warnings: forced proximity, xmen kink
Summary: Charles and Erik are stuck in a small enclosed space together, (air duct? broom closet? locker? etc.) "Bad guys" have just entered their general vicinity and Erik clamps a hand down over Charles' mouth. It's not safe to move/let alone breathe, (the "bad guys" are just settling in), and with Charles' back pressed tight against his front, Erik's body can't help but react.
First time. Painfully slow, desperate, lots of neck biting, telepathy, and Erik's hand never leaves Charles' mouth.
God yes. Forced proximity and sexy, sexy frottage.

Title: Are You Really Listening
Author: helens78
Pairings: Charles/Erik
Rating: Explicit
Word Count: 1,754
Content/Warnings: implied bottom!charles
Summary: Charles did promise not to read Erik's mind, but it's awfully hard when Erik's thinking so many very loud, lewd thoughts at him
Sexy fic with Charles "overhearing" Erik's dirty, dirty thoughts about him. :)

Title: The Feel-Good Drag
Author: tahariel
Pairings: Charles/Erik
Rating: Explicit
Word Count: 1,815
Content/Warnings: established relationship, light bondage, bottom!charles, implied switching
Summary: “You know, I’m still not convinced,” Charles says as Erik pushes him back onto the bed, wriggling up the mattress until his head is firmly propped on the small mountain of pillows he insists he needs, body lithe and comfortably naked on top of the coverlet. He looks up at Erik through his lashes like a peepshow of blue, a small coy curl to the corner of his mouth. “I mean, you’re good, darling, but I’m not convinced you’re that good. No offence.”
Crazy hot fic with Erik fucking Charles until he comes untouched.

Title: Maturity
Author: spicedpiano
Pairings: Charles/Erik
Rating: Mature
Word Count: 1,819
Content/Warnings: AU: Omega!verse, AU: Boarding School, alpha/beta/omega dynamics, omega!charles, alpha!erik, knotting, bottom!charles, first time
Summary: Erik never really thinks about it, that he and Charles might be growing close in a way the other boys at school are not.
(AKA: That fic where Erik and Charles are freshmen at prep school, and everything is A/O and nothing hurts.)
Such a beautiful written and wonderfully sweet a/b/o boarding school AU.

Title: the pen(is) mightier
Author: zarathuse
Pairings: Charles/Erik
Rating: Explicit
Word Count: 2,143
Content/Warnings: 1st class kink
Summary: kinkmeme fill for the prompt vicarious blowjob through metal objects.
Man this was so hot and I could totally see this happening with Erik's affinity for metal and Charles just completely oblivious.

Title: But Also The Sex Thing
Author: zamwessell
Pairings: Charles/Erik
Rating: General
Word Count: 2,172
Content/Warnings: a bit cracky
Summary: Professor X and Magneto have a few additional instructions for Logan, as long as, you know, he's going to be back in time.
Holy shit this fic is hilarious. Could not stop laughing.

Title: Open You Up
Author: magnetism_bind
Pairings: Charles/Erik
Rating: Explicit
Word Count: 2,232
Content/Warnings: rimming, table!sex, wall!sex, D/s, dom!erik, sub!charles, bottom!charles
Summary: I want smutty sex against the wall, on the table, wherever exciting, and I want submissive!Charles. And maybe some filthy oral sex...
JFC this was so freaking hot!! So many of my D/s kinks in this one

Title: Potentials
Author: aeshna-uk
Pairings: Charles/Erik
Rating: Explicit
Word Count: 2,266
Content/Warnings: AU: No Beach Divorce, established relationship, bottom!charles, implied switching, electricity play
Summary: Lightning flashes, carving the sky apart with jagged brilliance, and Erik gasps, his head falling back with a soft laugh as the answering thunder roars.
God this was crazy hot and I love the stormy atmosphere. I really liked the idea of Erik's powers extending into electromagnetic fields with the thunder and lightning.

Title: Cheers
Author: zamwessell
Pairings: Charles/Erik
Rating: Explicit
Word Count: 2,468
Content/Warnings: drunk!sex, mind altering substance: alcohol, talk of bottom!charles
Summary: Charles is drunk. Slightly less drunk Erik finds it oddly endearing.
Drunk!Charles is so adorable and hilarious and this fic was just super fun and sexy.

Title: Fear Death by Water
Author: sutlers
Pairings: Charles/Erik
Rating: Mature
Word Count: 2,518
Content/Warnings: dub-con, bottom!charles, made them do it: sex pollen
Summary: Things don't really start to go to hell until the next morning.
God this was so hot. Fantastic sex-polleny PWP.

Title: Kiss me hard before you go
Author: Elsian
Pairings: Charles/Erik
Rating: Explicit
Word Count: 2,820
Content/Warnings: bottom!charles
Summary: The tension between Charles and Erik on the plane comes to its obvious conclusion. Shameless porn, there is absolutely no point or plot here. Spoilers for DOFP
Beautifully written and crazy hot. All the bittersweet feels with the rough fucking, and then the slow, sweet heartbreaking sex afterwords.

Title: Natural Selection
Author: manic_intent
Pairings: Charles/Erik
Rating: Explicit
Word Count: 3,055
Content/Warnings: AU: Sentinel, Sentinel fusion, Sentinel!Eric, Guide!Charles, bottom!charles
Summary: Professor Charles Xavier is thirty-two years old when he meets his Sentinel, and as a credit to his half of the subspecies, he still manages to finish the seminar, run through a credible Q&A session, thank the Dean for the invitation to lecture as a guest at the Yale School of Medicine, before finally fleeing the theatre to find the nearest bathroom.
While he's busy throwing up into a toilet, he dimly hears the door to the bathrooms opening, then getting locked, and then someone is awkwardly patting him on the back, and Charles knows rather than sees that the Sentinel is conscientiously offering him tissues to wipe his mouth.
Maybe not a bastard, then.
Super fun Sentinel AU where you don't develop ~powers~ until you experience a Sentinel/Guide bond. Charles is *not* thrilled with the unexpected bonding, but Eric brings him around in the end. :D

Title: Armado (Not on AO3)
Author: richiexcore
Pairings: Charles/Erik
Rating: Explicit
Word Count: 3,312
Content/Warnings: hung!erik, bottom!charles
Summary: Charles wants Erik. Erik wants Charles. Erik solves this issue by wearing nothing but his sweatpants.
God this fic was so damn hot, with hung!Erik and a Charles who is just gagging for it.

Title: It's a Disaster (But That's All Right)
Author: chiasmus
Pairings: Charles/Erik
Rating: Explicit
Word Count: 3,338
Content/Warnings: established relationship, table!sex, bottom!charles
Summary: Charles attempts to help Erik improve his cooking. Nothing quite goes as planned.
This fic was so much fun! I was smiling throughout the whole thing reading about their various kitchen mishaps. And then it ends in hot kitchen sex. So really, a win all around!

Title: Stage
Author: etirabys
Pairings: Charles/Erik
Rating: Explicit
Word Count: 3,345
Content/Warnings: AU: No Powers, boss/employee relationship, D/s, gagging, office!sex, dirty talk, bottom!charles, 1st class kink
Summary: Kinkmeme prompt: Charles (aged 18-20) is interning at Erik's workplace (wherever/whatever that may be) and winds up riding Erik's dick in his fabulous ergonomic desk chair, preferably while other people are still just outside in the office.
Hot PWP with a wonderfully dominant Erik and intern Charles who is desperate for it.

Title: Waking up in all the wrong places
Author: scherryzade
Pairings: Charles/Erik
Rating: Mature
Word Count: 3,659
Content/Warnings: dream sex, implied bottom!charles
Summary: They keep waking up sprawled around each other. They don't even sleep in the same room.
Loved the concept of the boys waking up together even when they didn't go to sleep that way. Sweet and sexy fic.

Title: Between Rage and Serenity (Not on LJ)
Author: papercutperfect
Pairings: Charles/Erik
Rating: Explicit
Word Count: 3,756
Content/Warnings: first time, bottom!charles
Summary: The gang gets the idea that it would be good to get some training in hand-to-hand combat without the use of their powers, and since Erik has spent a good portion of his life kicking ass he's the obvious choice for their teacher. Charles, naturally, needs some one-on-one training that involves lots of sweaty body contact and ends in a battle for dominance between Erik and Charles. Anywho, it's all fun and games until someone gets an erection. Cue aggressive, down and dirty sex, complete with tearing clothes off each other, biting, pinching, marking... the works.
Oh god, so hot, with Erik teaching them all physical combat and then, of course, his session with Charles getting a bit out of hand, in the sexiest way.

Title: Any Day Now
Author: entangled-now
Pairings: Charles/Erik
Rating: Explicit
Word Count: 3,782
Content/Warnings: cross-dressing, rough sex, wall!sex, bottom!charles
Summary: Raven's smiling so hard her face has to hurt, and he can feel the wash of her amusement. It's mildly humiliating.
Unbelievably hot fic with Charles having to wear a dress for ~reasons~ and Erik finding the image so hot he cannot stop himself from ravishing Charles on the spot.

Title: Ain't Born Typical (We Are a Fever)
Author: cymbalism219
Pairings: Charles/Erik
Rating: Explicit
Word Count: 4,069
Content/Warnings: light bondage, desk!sex, bottom!charles, talk of switching, telepathic!sex
Summary: Five times Charles uses his mutant power to make Erik come and one time Erik turns the tables.
So hot!! loved how they used their powers for sexy, sexy purposes in this one! ;)

Title: teenagers scare the living shit out of me
Author: SapphireQueen
Pairings: Charles/Erik, background Azazel/Ravel, Emma/Moira
Rating: Mature
Word Count: 4,086
Content/Warnings: AU: No Powers, AU: High School, first time, dirty talk, bottom!charles
Summary: Charles only knew three things about Erik Lehnsherr:
1. His father and mother, Jakob and Edie Lehnsherr, worked for his family. Jakob as a handyman and Edie was the cook of the Xavier household.
2. Erik Lehnsherr was angry most of the time. That’s why people said he joined the football team, to channel his anger elsewhere. He’s probably angrier on the inside.
3. And most importantly, it was a matter of national importance that Charles should get into his pants as soon as possible.
Cute High School Au with some crazy hot sex.

Title: Jenseits deiner Tür
Author: mclachland
Pairings: Charles/Erik
Rating: Explicit
Word Count: 4,170
Content/Warnings: AU: No Beach Divorce, rimming, bottom!charles
Summary: If he is to be punished for his sins by a voyeuristic God, then greed is going right to the top of the list of his trespasses.
Sexy and intense fic with Erik and Charles celebrating and creating a path together for themselves in the aftermath of First Class (because Erik never left).

Title: In Plain Sight
Author: arcapelago
Pairings: Charles/Erik, implied Hank/Raven
Rating: Mature
Word Count: 4,626
Content/Warnings: bottom!charles, 1st class kink
Summary: A story where Charles and Erik have basically been together from the first time they met. The whole fate, wow we found each other thing. Now I would like the others not to know and try to bring the two 'oblivious' guys together. They of course enjoy this quite a lot (1stclass-kink request.).
OMG this fic is awesome. Hot and super funny!

Title: Is a Holy Unmercenary
Author: lanasauli
Pairings: Charles/Erik, implied Hank/Raven
Rating: Explicit
Word Count: 5,096
Content/Warnings: AU: No Beach Divorce, established relationship, secret relationship, implied bottom!charles
Summary: Post-Cuba fix-it, no beach divorce, woo!
Charles starts to get feeling back in his legs because of cool physiological reasons. Meanwhile, Erik battles his guilt, Hank plays doctor, and Raven is a sassypants. Awkward uses of angst and humor. But it's mostly fluff and romance, honestly.
Lovely fic that deals with the aftermath of Charles' paralysis and his slow healing. I loved how this fic approached Charles and Erik's relationship and how the events of First Class would affect it. Charles' voice in particular was excellent.

Title: Show Us The Sky
Author: Pangea
Pairings: Charles/Erik
Rating: Mature
Word Count: 5,231
Content/Warnings: AU: Fantasy, AU: No Powers, established relationship, bottom!charles
Summary: Erik has been away on duty for five months, protecting the realm as a dragon rider. Now he's finally on leave and he has a special present for Charles, who waits for him back in their home village.
Hot sex and dragons, what's not to love?

Title: Uncompromised
Author: dreamlittleyo
Pairings: Charles/Erik
Rating: Explicit
Word Count: 5,264
Content/Warnings: bottom!charles
Summary: A missing scene fic, involving chess and some of my favorite clichés.
Super sexy fic that fills in the "missing scene" after the chess match in First Class. Because obviously crazy hot sex happened.

Title: Is it Erik with a C or a K?
Author: ikeracity & kageillusionz
Pairings: Charles/Erik
Rating: Explicit
Word Count: 5,416
Content/Warnings: AU: No Powers, boss/employee relationship, dirty talk, bottom!charles, office!sex, desk!sex, sexting
Summary: When Charles sexts his boss instead of his latest squeeze during one late night of report writing, the first thing he expects is a sexual harassment law suit and the last thing is Mr. Lehnsherr actually fucking him hard into his desk.
(Or the one where the moral of this story is don't check who you sext if you want your boss to bone you.)
Guhhh, so, so hot! Fantastic dirty talk in this one. :D

Title: At Any Time
Author: musical_emjay
Pairings: Charles/Erik
Rating: Explicit
Word Count: 5,483
Content/Warnings: AU: No Powers, underage, age difference, bottom!charles, dirty talk, light D/s, public!sex, bathroom!sex
Summary: Strangers on a train. Things go as you might expect.
or
Charles makes a bold proposition, and Erik should really know better.
God this PWP was filthy and fabulous!

Title: Trying to create the next world war
Author: aesc
Pairings: Charles/Erik
Rating: Explicit
Word Count: 6,480
Content/Warnings: AU: Alternate First Meeting, bottom!charles
Summary: The voice's owner is a young man, maybe a handful of years younger than Erik, with the earnest expression worn by a boy who's never grown up. He's very correctly academic in a dark waistcoat and collared shirt, although the collar is very incorrectly unbuttoned to display a hint of throat – enough, Erik decides, to want to lick. [Or, the one inspired by this moment-inducing gifset, where for some reason Erik's decided to work for the CIA as a means to an end and gets sent to England instead of Moira.]
Alternate first meeting where Erik is consulting with the CIA to help him find Shaw and is sent to meet with Charles for info. And then hot sex happens.

Title: Cotton Walls
Author: toestastegood
Pairings: Charles/Erik
Rating: Explicit
Word Count: 6,619
Content/Warnings: bondage, bottom!charles, road trip
Summary: In large crowds, Charles finds it difficult to control his telepathy. While they're on their recruitment road trip, Erik tries to help.
This fic was my first time reading this pairing, and what a fabulous choice! Loved their dynamic in this and it felt very natural. Plus, crazy hot sex.

Title: All the Stars Were Falling
Author: verilyvexed
Pairings: Charles/Erik
Rating: Mature
Word Count: 6,624
Content/Warnings; first time, bottom!charles
Summary: Kinkmeme fill: Erik finds Charles in his bed rather than Raven. Can be read as a missing scene, or you can squint and pretend it means the Beach Divorce never happens.
(I meant for it to be a PWP, but the Raven-in-the-bed scene takes place right after the Chess Match of No Peace, and... well, angst happened. And weird star metaphors.)
Hot fic with Charles replacing Raven in Erik's bed during First Class. But a bit bittersweet with the open ending, though I suppose we can all pretend the end of of First Class doesn't happen and they live happily ever after.

Title: in the clear (coming like a rebirth)
Author: luninosity
Pairings: Charles/Erik
Rating: Explicit
Word Count: 7,331
Content/Warnings: AU: No Beach Divorce, established relationship, bottom!charles, implied switching, secret mutant exchange 2014
Summary: Erik awakened precisely on time, the way he’d trained himself to over long years, and lay in the bed for a while, breathing.
Charles, as ever, unfailingly woke up thinking about sex.
God this fic was so hot! Their chemistry was amazing and all those back and forth fantasies just added to the delicious sexual tension.

Title: Walling in or Walling Out
Author: stlkrchck
Pairings: Charles/Erik
Rating: Explicit
Word Count: 7,352
Content/Warnings: AU: No Powers
Summary: Erik stifles a sigh. Of course this is Mr. C. F. Xavier. Of course.
For the prompt: Charles and Raven are throwing a holiday party. Erik is the grumpy neighbor who is annoyed by how loud they are being. So he goes to complain, and Charles makes it up to him.
Oh this was such a fun universe and a light, fun fic.

Title: Summer Endeavors
Author: ikeracity
Pairings: Charles/Erik
Rating: Explicit
Word Count: 8,172
Content/Warnings: AU: No Powers, face-fucking, public!sex, talk of bottom!charles
Summary: Charles works at a shoe store. Erik walks in and asks for size fifteen shoes.
Ever the empiricist, Charles decides to test the correlation between shoe size and...other size.
Wonderful AU with a damn hot blow job.

Title: Not So Much the Teacup
Author: thehoyden
Pairings: Charles/Erik, background Emma Frost/Sebastian Shaw
Rating: Explicit
Word Count: 9,073
Content/Warnings: AU: No Powers, AU: Fusion, the wedding planner fusion, architect!erik, dirty talk, implied bottom!charles
Summary: “Charles is basically the bride whisperer. It’s like he can read their minds.” (wedding planner AU)
Wonderfully light fic with a surprisingly believable wedding planner Charles, and a grumpy/sexy architect Erik. Sexy and fun.

Title: The One About The Turtleneck
Author: zamwessell
Pairings: Charles/Erik
Rating: Explicit
Word Count: 10,481
Content/Warnings: outdoor!sex, bottom!charles
Summary: Charles decides to borrow one of Erik's turtlenecks. Things quickly get out of hand.
Love this fic! Super funny and sexy and light with particularly humorous cameos from the "children".

Title: Chessmen (Not on AO3)
Author: zamwessell
Pairings: Charles/Erik
Rating: Explicit
Word Count: 10,738
Content/Warnings: rimming, first time, implied switching, bottom!charles, road trip
Summary: Erik Lehnsherr’s mind was a castle, he thought, then dismissed the thought as silly and somehow over-dramatized. But he could not come up with anything better – castle indeed, with the dark corners, the sudden turnings, the hidden treasure-rooms with their guardian dragons. Perhaps the metaphor was less inapt than he had thought. He wanted to roam those corridors for hours, learn the twists and turns, find the minotaurs in that labyrinth and know them too.
Crazy hot fic with wonderful characterization and a very believable build-up.

Title: Age Difference AU Series (3 Fics)
Author: grim_lupine
Pairings: Charles/Erik, background Angel/Raven
Rating: Explicit overall
Word Count: 11,383
Content/Warnings: AU: No Powers, first time, age difference, bottom!charles, outsider POV (for fic #2)
Summary: Raven is six years older than Charles; Charles has never really considered this age difference vitally important in one way or another, except to decide that even if Raven were six years younger than Charles, she would probably boss him around in the exact same way. He doesn’t really think much of the difference between fifteen and twenty-one, until Raven comes home from college for a study weekend with her new best friend in tow, introduces him cheerfully as Erik Lehnsherr, and Charles finds himself falling head-over-heels into a train wreck of doomed lust.
Lovely little series with age difference, and innocent Charles, and sexy Erik, and eventually super hot sex! Loved the alternating POVs with each fic, and the switch up of Raven being the older one was a fun change.

Title: it's all right (I know it's right)
Author: Red, firstlightofeos, & pearl_o
Pairings: Charles/Erik
Rating: Explicit
Word Count: 14,464
Content/Warnings: established relationship, bottom!charles, implied switching, rough sex, face-fucking, dirty talk, face slapping, D/s dynamics, spanking
Summary: When Erik and Charles happen across some new kinks, Erik has qualms. Charles helps him work through them.
(or: how Erik learned to stop worrying and rough up his pushy boyfriend)
JFC this was just insanely hot!

Title: From Westminster With Love
Author: thehoyden
Pairings: Charles/Erik
Rating: Explicit
Word Count: 16,152
Content/Warnings: AU: Still Have Powers, AU: Crossover, Sherlock Holmes Crossover (barely), bottom!charles
Summary: NATO intelligence says there’s an omega-class telepath who sleeps under Westminster. Major Erik Lehnsherr is about to find out the truth for himself.
Lovely and fascinating AU with Charles as a sort of recluse working for the British government, and Erik assigned to help him with a case. I liked how the characters were incorporated here and the build was lovely.

Title: Your soul is a chosen country
Author: aesc
Pairings: Charles/Erik
Rating: Explicit
Word Count: 16,818
Content/Warnings: AU: Still Have Powers, AU: Historical, epistolary!fic, dirty talk, D/s dynamics, bottom!charles, rimming, bondage
Summary: He sends letters, of course, because out in the sticks there's not much to do except tend to Westchester's endless affairs. And, of course, avoid tending to those affairs by going on walks, riding, and writing letters that make him hard and thrill secretly when he hands the properly-sealed, addressed envelope to the butler.
Gorgeous historical AU with some fabulously steamy and sensual scenes.

Title: X Marks the Spot
Author: thehoyden
Pairings: Charles/Erik, brief mentions of Charles/OMC
Rating: Explicit
Word Count: 20,195
Content/Warnings: AU: Fusion, Indiana Jones Fusion, bottom!charles, rimming, first time, shared bed
Summary: The year is 1962, and Charles Xavier is a professor of archaeology who knows how his students feel, whether he wants to or not. He spends his spare time researching a mythical artifact, but he knows better than anyone that X never, ever marks the spot.
Sort of an Indiana Jones-type fusion that was immesnly enjoyable. I loved the way the canon people and relationships fit really well into this 'verse, and the connection and build-up was really lovely. Hot sex, and a happy ending made this a wonderful afternoon read. :D

Title: Falling Is Like This
Author: madneto
Pairings: Charles/Erik, implied Hank/Raven
Rating: Explicit
Word Count: 20,930
Content/Warnings: AU: No Beach Divorce, bottom!charles, implied switching, face-fucking, bonding!fic
Summary: What might have happened if Erik and Charles had actually acted on their feelings for one another.
Great fic that shows how First Class could have gone if Charles and Erik got together. Great relationship between Erik and Charles and super sexy.

Title: Sprich Mit Mir | Talk To Me
Author: papercutperfect
Pairings: Charles/Erik
Rating: Explicit
Word Count: 23,134
Content/Warnings: AU: Still Have Powers, implied switching, bottom!charles
Summary: When Charles meets Erik on a midnight train to London, it’s like all of his Christmases and birthdays have come at once – until Erik opens his mouth, and reveals he cannot speak a word of English.
It isn’t easy to pursue a relationship with someone you need to play Pictionary with just to chat to, but with a little help from Charles’ telepathy, the two language-barrier lovers are determined to make it work.
Really lovely, sexy fic. I really enjoyed the characterizations and the idea of Eric and Charles not speaking the same language and how they might overcome that.

Title: Lost and Found
Author: wallhaditcoming
Pairings: Charles/Erik
Rating: Explicit
Word Count: 23,661
Content/Warnings: AU: Royalty, AU: Fantasy, prince!charles, bottom!charles, x men big bang 2013
Summary: When Crown Prince Charles Xavier makes the impulsive decision to rescue a man who leapt into the river from enemy shores, his moment of selflessness ends up coming at a personal cost. In the process, however, he gains an ally and a friend. As Charles finds himself drawn to both Erik and his cause, he must find a way to satisfy both his conscious and his duty, all while separated from his troops and trapped behind enemy lines.
Really wonderful and sexy AU. Loved the tension and connection between the boys here! I will say that this says it's the first fic in a trilogy, but the other two haven't been written and it's been almost two years. This fic ends on a satisfactory note, but there is definitely a lot still to be resolved, just an FYI.

Title: No Longer in Silence
Author: Black_Betty
Pairings: Charles/Erik
Rating: Explicit
Word Count: 26,254
Content/Warnings: AU: No Powers, AU: Historical, AU: Fusion, Persuasion fusion, period-typical homophobia, military!erik
Summary: It has been eight years since Charles has seen Erik. Eight years since they parted under unkind circumstances and Erik went off to sea. The boy he once knew is Captain Lehnsherr now and they are as known to one another as strangers, and yet--Charles finds that eight years has done nothing to diminish the feelings he had when he was 16 and in love.
It's unfortunate then that Erik doesn't feel the same way.
(Persuasion AU)
Really fabulous historical fusion. Beautiful build and characterizations, and the emotion on this was lovely.

Title: Blood and Steel and Miles Between
Author: dreamlittleyo
Pairings: Charles/Erik
Rating: Explicit
Word Count: 29,464
Content/Warnings: first time, bottom!charles, ambiguous/open ending, xmen big bang 2011
Summary: (Post-movie AU.) On a beach in Cuba, Charles manages to talk Erik down from the edge. But even after the missiles have been diverted, compromise is impossible. There are two different futures to build, and Erik and Charles will always be separated by their principles. But when Charles is kidnapped and the X-Men can't find him, Erik will get him back no matter the consequences.
Meanwhile, trapped alone in his mind for the first time in his life, Charles comes face to face with the truth about what and who he wants. When convictions stand in direct opposition to the heart, which will prevail?
Oh this is gorgeous and so believable and heartbreaking. Wonderful characterizations, beautifully written, with fabulous chemistry. Beware the ambiguous ending though.

Title: In the Punch Line
Author: zamwessell
Pairings: Charles/Erik
Rating: Explicit
Word Count: 29,533
Content/Warnings: AU: No Powers, model!erik, professor!charles, fake/pretend relationship, bottom!charles, rimming, size!kink
Summary: Basically, Charles Xavier needs a date to his tenth high school reunion. Enter Erik Lehnsherr, Raven’s best friend, who happens to be a model and the new face of Calvin Klein.
This fic is just so delightful. Seriously funny and really damn hot with a wonderful chemistry and relationship development between Erik and Charles.

Title: Shout it Out Loud
Author: dreamlittleyo
Pairings: Charles/Erik
Rating: Mature
Word Count: 30,403
Content/Warnings: AU: No Beach Divorce, bottom!charles, bonding!fic, xmen big bang 2011
Summary: (Movie-Concurrent AU.) When Charles forges a telepathic link between himself and Erik, the two men find themselves bound together by more than just destiny. With the world on the brink of war, Charles and Erik struggle to cope with a psychic connection that may well be permanent.
Really wonderful fic that basically follows along First Class, with the addition of accidental bonding! I loved how the bond is portrayed here and how it affects their growing emotions. The ending is gorgeous and a bit heartbreaking (because it really does follow First Class canon pretty closely), but it felt all the more realistic for it, and it's certainly more promising then how First Class ends in canon!

Title: Timeline Series (3 Fics)
Author: Unforgotten
Pairings: Charles/Erik, implied Alex/Armando
Rating: Mature
Word Count: 31,625
Content/Warnings: AU: No Beach Divorce (sort of), time travel, bottom!charles, implied switching
Summary: After Magneto of an X2-ish future succeeds in the unthinkable, Charles sends his consciousness back to 1962 to guide Erik away from the path that will lead to the genocide of the human race forty years hence. Charles knows that Erik has always loved him, and intends to use this knowledge + sex to seduce Erik away from his ideals in his youth. There's no way this well-thought-out, sensible, debugged and 100% bulletproof plan can possibly go wrong.
Really cool set of fics that have Charles going back in time when he first met Erik and seducing him for the greater good. Interesting, and funny, and sexy reads!

Title: Into the Fray
Author: miss_aphelion
Pairings: Charles/Erik
Rating: Explicit
Word Count: 31,779
Content/Warnings: AU: Fusion, AU: No Powers, AU: Omega!verse, alpha/beta/omega dynamics, alpha!erik, omega!charles, hunger games fusion, bottom!charles, first time, marriage!fic, attempted rape/non-con, arranged marriage, x men first kink
Summary: Every year, two alphas are chosen from each district for a fight to death, and every year, a single omega is chosen to join them in the arena as the prize.
Erik Lehnsherr's name has been drawn to compete as an alpha tribute and he is set solely on survival, but he hadn't exactly counted on Charles, the mysterious omega tribute that isn't playing by any of the rules. Hunger Games AU.
I've read a lot of Hunger Games fusions in multiple fandoms, but I think this might be my favorite. I love how the a/b/o dynamics are woven into the story, it give it a really unique perspective. All the characters were incorporated brilliantly and the relationship between Charles and Erik was just wonderful.

♥ Title: Good Boys
Author: zamwessell
Pairings: Charles/Erik
Rating: Explicit
Word Count: 34,997
Content/Warnings: first time, shower!sex, rimming, light bondage, dirty talk, bottom!charles, rough sex, light D/s, face-fucking
Summary: Charles has always been a good boy.
Crazy hot fic that takes place during the mutant-finding road trip in First Class. I loved how Charles really struggled with coming to terms with his sexuality, which isn't something I've read a lot of, but makes sense for the time period. There is a lot of sex and it is unbelievably hot. Sexy, seductive Erik and helplessly aroused Charles who is just desperate for it.

Title: These Cindered Bones
Author: swoopswoop
Pairings: Charles/Erik, implied Azazel/Mystique
Rating: Mature
Word Count: 36,675
Summary: Erik gets attacked by something unknown and when his health starts to decline, has no choice but turn to the x-men for help after seven years of separation.
Great fic about Charles and Erik coming together several years after the end of XM:FC. Perhaps a bit too many epithets used (the telepath/the metal manipulator) but an enjoyable plot and great characterizations showing Charles and Erik's feelings after everything.

Title: Plain Sight
Author: aesc & pearl_o
Pairings: Charles/Erik
Rating: Explicit
Word Count: 37,000
Content/Warnings: AU: Still Have Powers, cop!erik, shared bed, age difference
Summary: When he was eleven years old, Charles ran away and disappeared. Eight years later, as a curious detective begins to notice his traces, Charles thinks he's finally ready to join the real world once more.
But as it turns out, learning to be among people again isn't easy -- and his relationship with Erik is perhaps the most complicated of all.
Lovely fic that's sort of an AU of the Tough Little Baby Telepath AU Series, though you definitely don't need to have read that one to understand this. But I recommend them both, because they're just delightful. I loved the age difference here and the living together and how the love and trust developed between them both. Gorgeous fic.

Title: With pulses that beat double
Author: aesc & pearl_o
Pairings: Charles/Erik
Rating: Explicit
Word Count: 39,418
Content/Warnings: AU: Still Have Powers, AU: Historical, artist!erik, non-linear timeline, dirty talk
Summary: It has been thirteen years since Charles watched his beloved childhood companion walk out of his life. Now, in fin-de-siècle Paris, a chance overheard remark may lead them to each other's sides once more.
Really gorgeously written historical AU. I loved the flashbacks to Charles and Erik's childhood together, and the strength of their connection was just lovely.

Title: Arms I'd Never Use
Author: anselm0
Pairings: Charles/Erik, background Hank/Raven
Rating: Explicit
Word Count: 39,812
Content/Warnings: AU: No Beach Divorce, bottom!charles, sex toys, x men reverse bang 2015
Summary: It doesn't end on the beach in Cuba, but that doesn't mean it's going to be easy as Erik tries to repair his relationship with Charles.
Lovely fic that has Erik staying on after the beach incident, and helping Charles deal with his paralysis. Great characterizations and watching them come together was just wonderful. Plus it was super freaking hot and the art is just gorgeous.

Title: The Tower and the Hurricane
Author: dreamlittleyo
Pairings: Charles/Erik, Irene/Mystique
Rating: Explicit
Word Count: 41,572
Content/Warnings: AU, bottom!charles, xmen big bang 2011
Summary: (Post-movie AU.) Five years after Shaw's death, Erik's predictions prove painfully accurate. Violence rages on both sides of the human/mutant conflict. In a world ravaged by war, it doesn't really matter who's more at fault. Charles struggles to teach his students a better way, but what choices will he make when peace really isn't an option?
God this was just such a beautifully written story. I loved the idea of Professor X having to make some moral compromises and how that might affect him, and Magneto's mutant city was awesome and so clever. The connection between Erik and Charles was just electric. And the ending was wonderful and heartbreaking.

Title: Better Outrun My Gun
Author: magnetism_bind
Pairings: Charles/Erik
Rating: Explicit
Word Count: 42,228
Content/Warnings: AU: No Powers, AU: Western, age difference, bottom!charles, first time
Summary: Erik is searching for the man who murdered his parents. Charles runs a saloon with his sisters.
Well crafted western au with a seriously lovely Charles and a fabulously characterized Erik. The chemistry and sex was phenomenal and I really enjoyed Moira as Raven and Charles' big sister.

Title: Cannot be Contained in Words
Author: wallhaditcoming
Pairings: Charles/Erik
Rating: Explicit
Word Count: 43,252
Content/Warnings: AU: No Powers, AU: Gangster, mobster!erik, professor!charles, bottom!charles
Summary: Crime syndicate head Erik Lehnsherr travels to London on business, where he meets oxford student Charles Xavier. Their liaison spawns into a years long transatlantic affair, kept apart by Erik's work and Charles' studies,which Erik chronicles in photographs. When distance ceases to be an issue after four long years, the overlap between Charles' past and Erik's work create a whole new set of complications.
Awesome AU with Mob Boss!Erik falling for academic!Charles. Loved their relationship here, coping with the long distance and then the criminal aspect. And featuring a surprisingly tolerable Shaw, which may be a first for me!

Title: One Second and a Million Miles
Author: madneto
Pairings: Charles/Erik, background Irene/Raven & Alex/Armando
Rating: Explicit
Word Count: 47,823
Content/Warnings: AU: Still Have Powers, bottom!erik, dad!erik, doctor!charles
Summary: Between being a parent to the best baby in the history of man-kind and co-running a Mutant Center in Hell's Kitchen, Erik Lehnsherr has his hands pretty full. Too full, certainly for romance; something that has never really been on his radar to begin with.
All that changes, however, when he meets Dr. Charles Xavier. Handsome, intelligent, capable, kind, an Omega level telepath, and one of the best pediatricians in the state, he's everything Erik didn't know he was looking for. But he's also Lorna's pediatrician which means, of course, he's off-limits. Except how is Erik supposed to try and forget his crush when he and Charles keep running into each other as if fate is trying to tell them something? When, as Charles says, they seem to want the same thing?
Really sweet AU with single dad Erik falling for pediatrician Charles. Gorgeous build and characterizations here.

Title: Our House, In The Middle Of Our Street
Author: clocks
Pairings: Charles/Erik, background Emma Frost/Sebastian Shaw
Rating: Explicit
Word Count: 51,477
Content/Warnings: AU: No Powers, switching, bottom!erik, mostly bottom!charles, shower!sex
Summary: Charles is a social worker who fosters troubled kids, and one day he meets Erik, an ex-convict, who reluctantly agrees to stay for only a while, but ends up staying for good and helping Charles to raise the kids. Awkward parenting ensues.
Wonderful AU with foster parent Charles and handyman Erik! I loved the way all the kids and characters are incorporated in this world, and the relationship between Erik and Charles is just lovely (and sexy!).

Title: Into the Jungle
Author: madneto
Pairings: Charles/Erik, background Armando/Alex
Rating: Mature
Word Count: 56,756
Content/Warnings: AU: Fusion, AU: No Powers, AU: Historical, Tarzan fusion, first time, period typical homophobia, bottom!erik, xmen big bang 2013
Summary: Ever since he can remember, Erik's always been different from the rest of his family. He's tried to fit in, encouraged by his mother and his friends, but Logan, the troop's silverback, has never acknowledged him as one of their own. Still, Erik is determined to become the best ape ever, until one day, strangers arrive in the jungle. Strangers that look just like Erik.
Tarzan AU written for the X-Men Big Bang Challenge.
I don't think I have ever read a Tarzan fusion before and I was a bit hesitant, especially since half the X-men characters are gorillas. But it honestly works really well! I loved how everybody was worked in, and the connection between wild Erik and scientist Charles was so lovely.

♥ Title: Politics and Prose Series (2 Fics)
Author: cygnaut
Pairings: Charles/Erik, background Alex/Armando, past Erik/Magda
Rating: Explicit
Word Count: 67,108
Content/Warnings: AU: Still Have Powers, politican!erik, office!sex, bottom!charles
Summary: A modern politics AU set in Genosha.
Super fun and well written AU with Erik being involved in politics and finding Charles via a dating app. The plot was captivating and the characters were beautifully captured.

♥ Title: The Winter of Banked Fires
Author: Yahtzee
Pairings: Charles/Erik, Logan/Marie, background Bobby/Kitty
Rating: Explicit
Word Count: 67,622
Content/Warnings: AU, slash, het, bottom!charles, virgin!rogue
Summary: Charles Xavier has returned from the dead -- but is lost within his own mind. Rogue has cast aside her own power and doesn't know where she fits in the world any longer. The production of synthetic Cure means mutantkind itself is newly at risk. And Magneto, turned human against his will, is in despair until the day he feels a familiar consciousness tugging at his own.
Really wonderful fic that combines the X-Men movie trilogy and X-Men first class canons and takes place after the 3rd movie. This fic has explicit sex for both Charles/Erik and Logan/Marie and the relationship development for both couples was fantastic.

♥ Title: To Rattle the Stars
Author: GQD & Pangea
Pairings: Charles/Erik
Rating: Explicit
Word Count: 70,755
Content/Warnings: AU: No Powers, AU: Fusion, AU: Space, AU: Pirates, first time, bottom!charles, character death, pirate!erik
Summary: All his life Charles has chafed at the bonds of gravity that hold him bound to tiny and backwater Montressor, more at home in the sky on his solar surfer than on the ground, where he's stuck working at his stepfather's inn. His heart and soul yearn for the stars, and it's his dream to one day be a spacer and sail across the cosmos on adventure.
The opportunity comes sooner than he ever imagined one night when a ship crash-lands on the inn's front doorstep, carrying a dying pirate with a mysterious map and a dire warning: beware the cyborg.
[A Disney's Treasure Planet AU]
Oh, this fic was so much fun! The world building was fabulous and I just loved Erik and Charles in this. The tension and build between them was fabulous and honestly the whole thing was a delight.

*NEW: 4/14/2020*
Title: ...and this compromise Series (10 Fics)
Author: luninosity
Pairings: Charles/Erik
Rating: Explicit
Word Count: 74,905
Content/Warnings: AU, D/s, BDSM, dom!Eric, sub!Charles, bottom!charles, bondage, sex toys, spanking, intercrural sex, barebacking, figging, semi public!sex, sounding
Summary: Written for a prompt of Erik and Charles are starting to negotiate a budding relationship - as dominant (Erik) and submissive (Charles). Whilst Charles is all for this, as someone who's been bred and raised to be in charge of any given situation, he can't help find the whole thing very awkward. Erik's happy to be patient with him - he just loves him and wants to look after him, even if Charles still isn't comfortable with being looked after.
Great series, with Charles and Erik really learning how to be together and how to have a safe and healthy D/s relationship.

Title: Mutant Operative Division Series (2 Fics)
Author: madneto
Pairings: Charles/Erik
Rating: Explicit
Word Count: 84,847
Content/Warnings: AU: Still Have Powers, bottom!charles, CIA!erik, fake/pretend relationship
Summary: Erik is a CIA agent who has been tracking down black market dealer and occultist Sebastian Shaw for the past ten years with no real end in sight. When he stumbles upon an unexpected lead that will put him one step ahead of Shaw at last, archaeology professor and Templar enthusiast Charles Xavier becomes unwittingly entangled in the fray, and Erik suddenly finds himself with a brand new partner who is the only one who can truly help him on what's become a quest to find the Holy Grail. But Charles is even more than Erik bargained for, especially after they're forced to pretend to be a married couple as a cover while racing to find the Grail before Shaw does, and both Erik and Charles find they've possibly bitten off more than they can chew.
Powered AU vaguely inspired by Indiana Jones and James Bond movies.
Gorgeous AU with secret agent Erik and professor Charles having to work together to stop Shaw. Great plot and world building, and the characterizations and relationship development here were both wonderful.

Title: Backseat 'verse Series (19 Fics)
Author: tahariel
Pairings: Charles/Erik, background Moira/Emma
Rating: Explicit
Word Count: 91,160
Content/Warnings: AU: BDSM, AU: Still Have Powers, Dom!Erik, sub!Charles, switching, bottom!erik, mostly bottom!charles, sex toys, bondage, face-fucking, role play, praise!kink, dirty talk, arranged marriage, first time, collars, spanking, intercrural, phone sex, caning
Summary: “Charles has a very sweet nature,” Raven is saying, her hand falling to the back of his head and stroking his hair very gently, carelessly affectionate. “He doesn’t need someone to force him down, he’s very happy to go there himself. If Erik is the sort to need a fight, then there’s no way I could let him have my brother.”
Really sexy and interesting BDSM AU where everybody is either a Dom or a sub. I really liked the world-building here and the whole 'verse is really fascinating! There's also a threesome fic included in the series that is technically an AU of the 'verse, so you can skip it if that's not your thing.

Title: The Courtship
Author: dvs
Pairings: Charles/Erik, Raven/Hank, Azazel/Emma
Rating: Explicit
Word Count: 98,738
Content/Warnings: AU: Future, arranged marriage, switching, bottom!charles, bottom!erik, marriage!fic
Summary: A story about a courtship that began five hundred years ago.
This is a super interesting fic that takes place several hundred years in the future with Erik and Charles, descendants of the great Magneto and Professor X. They have to get married for ~reasons~ and there is wonderful getting to know each other, and flirting, and friends/family all with this undercurrent of dreams and memories from their ancestors. Really fascinating and well-written, and I just adored this Erik and Charles.

♥ Title: Tessellation
Author: nekosmuse
Pairings: Charles/Erik, background Hank/OFC, Mystique/Destiny, past Hank/Angel, past Charles/Moira
Rating: Explicit
Word Count: 116,668
Content/Warnings: AU: Alternate First Meeting, telepathic!sex, bottom!charles, mention of past non-con, disabled!charles
Summary: He had been following Xavier's career for years. He had read and reread and reread again everything the man had written. He had tried, on more occasions than he could count, to recruit Xavier into the Brotherhood, but each request for a meeting had been denied. Aside from his work, no one knew anything about Xavier. Not what he looked like, not the full extent of his power--though from what little they did know, he was by far the most powerful telepath in existence--and not what his intentions were.
The man was a recluse. As far as Magneto knew, Xavier had never once stepped foot outside his impenetrable Westchester manor. And now he was scheduled as the keynote speaker for the largest pro-mutant conference in the world.
Truly wonderful fic with a wheelchair-bound, reclusive Charles, and a slightly less fanatical Erik. I loved watching their relationship grow and develop and the whole thing felt like a very believable alternate course of events. Everybody was wonderfully characterized and I liked how the canons were blended and slightly altered to fit in this AU. The chemistry was lovely between Erik and Charles, and I haven't read many fics that have Charles in the chair, but it was so beautifully done here.

♥ Title: Anarchy In The U.K.
Author: Yahtzee
Pairings: Charles/Erik, Raven/OMC, past Erik/Shaw, past Charles/OMCs
Rating: Explicit
Word Count: 162,328
Content/Warnings: AU: Royalty, AU: No Powers, prince!charles, writer!erik, switching, bottom!charles, bottom!erik, light bondage, blindfolds, rimming, wall!sex
Summary: "Good God, Erik thought. The Prince of Wales is gay."
Charles lives in the unceasing glare of the public spotlight, yet keeps his sexual orientation a closely held secret, afraid he could lose his throne and force his deeply troubled younger sister into a role that would crush her. Erik, journalist and world traveler, has been a loner most of his life; he has little patience for closet cases. But a chance meeting in Kenya brings these two opposites together and sets in motion a love affair that will challenge the British monarchy -- and their most deeply held beliefs about who they are, and who they should be.
God this fic is just so freaking amazing!!! Loved how on point the characterizations were for both Erik and Charles and how seamlessly everybody was incorporated into this AU. The relationship development was perfectly paced and chemistry between them was just mind-blowing. Plus crazy hot switching sex! There are also several other small fics and oneshots in the verse.

♥ Title: The Associates Series (8 Fics)
Author: ikeracity & Pangea
Pairings: Charles/Erik
Rating: Explicit
Word Count: 176,796
Content/Warnings: AU: Still Have Powers, AU: Mobster, mob boss!erik, established relationship, bottom!charles, car!sex, blindfolds
Summary: Being a mob boss' associate has its ups and downs. Having sex in the back of a limo on Valentine's Day is definitely one of the ups.
Really fantastic AU with Erik as a mob boss and Charles as his professor boyfriend. The world-building is really fantastic here, and I loved how in-character everybody felt. The connection between Charles and Erik was amazing, and it's rare that an established relationship AU so completely grips me, but this one was fantastic!

♥ ♥ Title: White Nights Series (2 Fics) (Locked on AO3)
Author: spicedpiano & tahariel
Pairings: Charles/Erik, background Shaw/Emma, past Erik/Magda
Rating: Explicit
Word Count: 203,129
Content/Warnings: AU: Historical, AU: Royalty, AU: Omega!Verse, Alpha/Beta/Omega dynamics, Alpha!Erik, omega!charles, heat cycles, first time, knotting, bottom!charles, rimming, arranged marriage, MPREG, sex toys, age difference, outdoor!sex
Summary: Duke Erik Lehnsherr of Ironhold needs an omega to carry on his line, and Earl Charles Xavier of Westchester needs an alpha to give him the political leverage he needs in order to make his sister Queen. An arranged marriage brings them together, but Erik's lust for war and Charles' hidden agenda threaten to tear them apart. In the frozen Northlands of Ironhold life is hard and cold, and both Charles and Erik must give up their pretense and see each other as they really are: perfect for each other, if only they'll acknowledge it.
Seriously AMAZING historical fantasy omega!verse AU with Charles and Erik having an arranged marriage, advantageous to each for political reasons. The world building was really fantastic here, as were the characterizations. Fabulous plot, searing chemistry, and honestly just a really wonderful read. I was on the edge of my seat the entire time, unable to stop reading yet not wanting it to come to an end.

♥ Title: Tough Little Baby Telepath Series (5 Fics)
Author: pearl_o & aesc
Pairings: Charles/Erik
Rating: Explicit
Word Count: 221,490
Content/Warnings: AU: Still Have Powers, cop!erik, age difference, switching, bottom!erik, mostly bottom!charles, dirty talk, rimming, shower!sex, barebacking
Summary: Teenage telepath Charles Xavier takes a job as a consultant, working with prickly police detective Erik Lehnsherr. Charles is used to being on his own and taking care of himself; he has no reason to think that his relationship with this stern, icy man is going to change any of that. (Also known as: Tough Little Baby Telepath.)
Really fabulously written AU with Detective Erik and consultant Charles. I loved the characterizations here and the age difference worked really well. The whole thing was just a delight to read.