Sanscest Oneshots | Bored Lmao | Requests Open

Who Comes Out On Top Eh? | Cross x Killer | Smut, Fluff

Warning: Dub-con + Oral Sex

The AO3 curse hits. Sorry for how long it took I had quite a few personal matters to contend with. Also it doesn't perfectly fit your description so I do apologise for that. Nowhere near as much as I wanted to write either but I wanted to publish something so again, I apologise.

Please heed the warning above and continue at your own risk. Thank you.

Requested by Crosslover on AO3

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It takes nothing to start a fight. Merely being in the same room as Killer can lead to a fight for Cross. Not necessarily physical, however Killer always immediately started to insult Cross or make fun of him. Calling him schizophrenic or crazy because he talked to the air (XChara). Cross would be able to take some of it, however no one would be able to sit there being insulted for an hour straight. Killer showed no chill either, not stopping even when Nightmare or others showed up. Often Nightmare taped his mouth shut for a day, leaving him to stop it for a while after. But now even that wouldn't hold him off anymore. It was constant and annoying.

Cross didn't help it like, he would often say worse things about Killer, insulting his past, calling him weak and someone with no backbone. How he took a deal with the murderer of all his friends and brother. Killer usually wouldn't get mad, he seemed too laid back to care. However sometimes... particularly if Cross insulted him unprovoked after some kind of mission, he would get pissed. Often it was just 'light-hearted' fun, but when one did it to the other when they were in a bad mood, it would turn into a physical fight.

Cross had done this numerous times, so had Killer. Cross won the fight around 30-40% of the time when he was being provoked, and about 45% of the time when he provoked Killer. Because he was expecting the fight back. However there had been a few times when Cross didn't realise Killer had been on a mission for whatever reason. And because of that Killer managed to get a sort of 'jump' on Cross. He was able to attack him without Cross expecting it. Each and every time these happened Killer had won, and when it was the other way around with Cross getting the 'jump' on Killer, he had won around 75% of the time.

The clock had struck 1pm and Cross had only just gotten out of bed, getting himself ready and getting a drink and some breakfast. He saw Killer at the table, clearly not in a good mood but was still drinking whatever he had in his cup. Cross, whilst turned, made a sly remark towards Killer. "What's made you unwanted today~" He continued making his coffee, his taking longer than any normal one. He had brought a whole special kit to make his coffees in the morning to the castle.

Clearly that wasn't what Killer wanted to hear, he was wanted obviously. That's why he was still here. Cross had his back turned. He could attack. But last time he did Nightmare locked him up. Horror and Dust had to sneak him food down as he was down there for weeks. He can't go through that and put his friends in danger like that. Not again. He held himself and fired back. "At least I love myself enough to get out of bed before 1." The classic self-worth insult.

Cross was slightly caught back, not expecting it. He continued making his drink, steaming the milk. As soon as the loud noise of steaming the milk finished he immediately clapped back. "At least I chose to join this group, you were taken against your will so you try convince yourself you want to be here when actually you don't."

That was an extreme jump. He took the insult and without hesitation, fired back. "At least I'm committed to my job and don't half-ass my missions and blame it on others because I'm too scared for a punishment." He barely moved at anything, just responding.

He finished making his coffee, reaching around for his spoon to stir in his sugars. "Well at least I have enough backbone to dodge a punishment."

"Well at least I'm able to understand when I did a shit job and take the punishment unlike you. You run off to your room and hide until Nightmare gives up."

Cross paused a second, wow, he didn't think Killer knew that. "Well at least my successful mission record isn't horrible."

"You know the missions don't get recorded when you hide away like a pussy? Here's the correct one for you... awww 5%. Good think you've got one of us to pick up your slack."

"Well my morals aren't twisted enough to believe taking a deal with a psycho was good."

"You lost in a magic fight against Dust and a physical fight against Horror. You ain't shit."

"You let an octopus beat you around."

"Count your limbs and maybe understand you ain't smart just cause you try to be. You're shit and pathetic, with no education to your name."

"You can't remember half of your stuff."

"I have numerous qualifications I gained to take care of my brother from a young age, degrees in math, science, astrophysics, ethics and dozens of years in experience in all those fields. You have a dead AU."

Cross did have to agree (mentally) that Killer was right. He was smart sure, but not as smart as he was. The dead AU comment was unnecessary. "At least I know when to draw the line."

"At least I didn't willingly kill my brother."

"You took the deal knowing what it would bring."

"And you voluntarily came here and still can't face the consequences."

"And that doesn't matter!"

"Do you think you are above consequences?"

"Wh-at? no of course not."

Killer slammed his hand on the table, his other hand grabbing a weapon. "Then why do you deject? Hide from them."

"B-because I have self-worth."

"You are depressed Cross. Self worth is the last thing you have"

Cross had been successfully beaten, in part due to Killer's relentless nature and lack of filter, in part due to his truth. Not a word of what either had said about the other was a lie. But Killer's words hurt Cross more. It made him sad, but more than anything made him angry. In a weird feeling way. Part of it was anger, but part of it was admiration? Which only fuelled the anger side more. Forming the negative feedback loop, as anger rose, admiration rose because he managed to make Cross angry, but then anger rose because of that and so on. Always evening out. And as he was in this thought, he had failed to notice Killer walk up to him and pin him against the counter. It was a wonder how Cross survived so long in this gang with this level of awareness.

"W-what-?! G-get off of me!" Cross wailed, trying to whack Killer with his limbs to get him off, but Killer had him pinned pretty well, even going as far to use some zip ties he just happened carry on him, tying his hands behind his back in a makeshift manner.

"I know what you think of me~" Killer chimed, stepping away and turning his back to Cross, showing just how in control he felt in this situation. The other had his legs sure, but no arms.

He could however, fight with words. "I don't feel anything but murderous intentions of you."

"And you've yet to do so in the extreme number of situations you could have? Is it cause you're scared of the big bad Nightmare" He mocked, "Or is it cause you feel something for meeee~ awww has someone got a crushhh~"

Cross didn't. Absolutely not he wouldn't ever date someone like Killer, but it was embarrassing, what if someone heard him say that? So he blushed, but only out of sheer embarrassment, but that didn't mean anything to Killer.

"And I'm right~ how about I take you t'my room tonight m'lady~" He reached his arm around Cross. going under his arms at the back so he was locked into the hug. "I'll treat ya reaaaall good~"

"Fuck OFF!" Cross headbutted Killer, causing a large bruise to form on his head.

"Oh you're feisty ain'tcha? Ey I love me some bickering prey, c'mon it'll be fun~"

Cross wanted so bad to kick him in the crotch but didn't. He elbowed him in the chest, attempting to wind him, then toss him down. It worked to an extent, but Killer took Cross down with him, getting Cross into a worse situation than he already was. He struggled against the others tight grasp but was unable to free himself. He stopped and exhaled. "Promise to leave me alone if I accept...?" He didn't want to fight, nor would he win if he did. Killer was satisfied with that, picking him up and slowly bringing him to the bedroom, whispering phrases and such into his ear, poking fun at him, insulting him then immediately afterwards talking about how much he wants to pin Cross down. There was no pattern, but as the pair approached Killer's room Cross's dread began to fade. And a dusting of purple grew across his cheeks, as if he were enjoying this. He definitely wasn't though. He slapped himself across the cheeks to get it to go away, the purple glow transferring to other parts of his body instead.

It was apparent that no matter how Cross tried to hide it, he was enjoying this somewhat. At least enjoying the idea of this whole thing, even if he'd rather do it with someone else that wasn't Killer. Regardless, the skeletons room appeared as the entrance to a grand finale to Cross. Foreboding the inevitable. Cross of course would want to fight back. But how could he? He didn't know if Killer would even stop if he cried or begged. He didn't know him emotionally like that. All Cross knew was how to annoy him. Killer threw Cross onto the bed and closed the door behind them. "I figured you'd rather not be embarrassed. I'd be well prepared to go down on you in the middle of the living room." Killer rolled his jacket off his shoulders onto the floor. He only had his black sweater and a pair of shorts, hopefully some underwear too. Killer grips Cross' wrist, holding it tight for a second, then pulling his jacket off too. It was slow, uncomfortably so for Cross, who was having to endure each second. Yet as time ticked on, he found himself enjoying it slightly more. Not extremely so, but just a bit more.

The minutes passed by until Killer remained in just his boxers, and Cross was sprawled out on the bed, with only his boxers. Killer climbed on top of Cross and stared down, slowly starting to hump between his legs. Gently bringing his own pleasure up, and also slowly bringing Cross' up. His own erection grew, a gentle stain of pre at the end of his own boxers damping areas around Cross' entrance. Cross' own boxers having a similar stain of pre at the end too. Killer teased Cross, using two of his fingers directly on the tip of Cross' dick through the fabric and rubbing it, moving his dick around through the boxers just by those two fingers. Cross was in a mixture of emotions, wanting so badly to hate this, hate the feeling. Yet he found himself making a few sweet sounds of pleasure, which he would always quickly silence himself, yet Killer wasn't making fun of him... just slowly and methodically continued what he was doing. So Cross felt as if he could start to not remain silent, yet the sheer idea of doing that in this situation was a resounding no for this moment.