Undertale/Au's x reader 4

Protective much?

Protective! Bf! Killer x Gf! Reader.

*thank you for the request! It helps with my lack of inspiration! Sorry if this is bad, I don't know a lot on killer. So his personality may be wrong.

You became part of the villain mob with the rest of the idiots when your boyfriend brought you to Nightmares castle.

At first Nightmare was a bit of an a**hat, but later on you both got along fine.

Same with the others. But Killer put them in their place.

As of right now? You and Cross were playing video games, yelling at each other.

"Ugh! Stop using power ups!" You smack his shoulder.

He just smirks. "Its not my fault that you're bad at this game."

"I am not! Don't you have to go make out with your knife or something?"

He chuckles. "No, don't you have to go make out with Killer?"

You blush and smack him with the controller. "SHUT UP!"

He laughs and tries to block your hits.

Killer walked into the room, he chuckles at your outburst. "Y/n? What happened?"

"Cross is being an a**hole!"

"No I'm not in just said that you want to lock teeth with ki-

You smack him again. "Don't even finish that sentence!"

Killer smirks and leans over the couch and kisses your cheek. "If you wanted a kiss sugar cube you could have just asked."

"Do I have to smack you too?" You grumble.

He laughs and sits next to you, shoving Cross on the floor.

Blackberry soon joins you all, his hands on his hips. "WHAT IS GOING ON IN HERE? ALL I HEAR IS YELLING AND GAME CONTROLLERS FLYING!"

You point at Cross. "He did it."

"Oh yeah sure!" Cross chuckles.

Red was suddenly next to you, and tried wrapping his arm around your shoulders.

Even if you were with Killer, Red would constantly hit on you.

And killer did NOT LIKE IT AT ALL.

Killer glares at him. "Red.. That's your last warning. Get your gross mustard loving hands off of her."

Red rolls his eyes. "Pfft. As if."

Killer gently pulls you from him, then sets you in his lap, wrapping his legs and arms and hoodie around you.

You're just a burning tomato whole this happens.

"Mine." Killer hisses like a cat and points his knife at Red.

Red puts his hands up in defence. "Heh.  Heh.. She may be now. But.. Not for long.~"

Teddy shoves Red out of the room. "C'mon you idiot. Knock it off or he'll murder you."

Killer glares at them both. "All of you get out!"

They all give each other looks then run out of the room, Red fell, but who cares.

Killer rests his skull in the crook of your neck. "Mine.."

"Over protective much?" Dust says, leaning against the doorway.

Killer growls and throws the lamp at him, he quickly teleports but the lamp breaks.

Its fine Nightmare won't notice.. Hopefully.

R.I.P lamp.

Killer groans and hides his face in your neck.

"He has a point you know."

"Shut up.. I know." He mumbles.

You giggle and kiss his teeth. "But its okay killer, I still love you the same."

He blushes and kisses you back.

"I love you too sugar cube."

---(Bonus)

"Who broke my damn lamp!?"

You both hear Nightmare yell, you and killer look at each other then he warps you both back to his room.

End. I know this was short and random. I was bored. :3