This is for XMangoJuiceX because I just liked the idea of it but I changed it up a bit :3

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Nightmare POV

I was searching around the castle for killer, i hadn't seen him for a few days so I was worried that the star sanses may have taken him hostage but knowing killer he would probably slice all their heads off as soon as he gets the chance while searching I find cross "heya crossy" I say he turns to face me and and hugs me and says "hey nighty, what's up" I return the hug and kiss him on the forehead and ask "have you seen killer at all? he hasn't returned any of my calls" he thinks for a moment and replys "no I haven't, try checking with scar" (yes I am making my OC come in more story's) I walk towards the living room and see scar "hey scar, I can't find killer, do you know where he is?" Scar turned to me thought for a second and said "yea I think he went to outertale" I thank him and take a portal to outertale

Through the portal

As soon as I appear in outertale I sense so many positive emotions, oh well outertale is a neutral AU which means they don't favor one side over the other as long as no fighting is done in their AU. I soon feel dreams aura, just great, I decided to follow it, I soon appear near a ledge, I see dream and killer?, killer put his arm around dream pulling him closer, I WAS LIVED, my tentacles literally had to stop me from running in and killing killer, dream suddenly says "I love you killer" my eyes widened in surprise, I decided to wait at the castle and once he comes back I'll have a friendly 'chat' with him.

Time skip

I feel killers aura and I call him to the throne room, he soon appears and asks "what is it nightmare?" I smirk and ask "where have you been?, I have been calling you all day" killers eyes widen and quickly says "oh yea I went to go to outertale" i reply "why though" he quickly says "oh you know to watch the stars" I smile and say "okay, by the way how was your day?" He smiles and says "oh it wa-" he was stopped by my one tentacles wrapping around his neck and lifting him up "okay let's cut through the polite shit (comment if you know what that's from) I know you were with my bro, and all im going to say is if you touch my brother, you. Are. Dead" I say sternly, my tentacle drops him onto the concrete floor, he gets up holding his neck and walks out the room, cross comes in and asks "what happened?"

Time skip

"Wait so you saw killer and dream together and you don't want killer to make any moves on dream" cross says confused "yep pretty much" I reply cross sighs and says "come on let's relieve some of that stress~” as he heads to my room, I smile and follow him

time skip (no sin just yet ;) )

Dream POV

I am so happy, killer had confessed that he liked me I was jumping around like blue when he gets a lollipop "ding" I got a text from killer

Killer: dream I need to tell you something
Me: ok?
Killer: your brother saw us and he didn't like what he saw
Me: oh no what are we going to do?
Killer: I have an idea we just keep it very secret
Me: I guess but I wanted to tell him and I thought he would be happy
Killer:...  This is nightmare we are talking about right?
Me: yes, oh I gotta go see you soon x
Killer: love you see you x

I sigh killer is right, my brother even in his passive form Would probably be over protective of me.

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I had to quickly get this out see ya bois