[Undertale] Sans X Reader - Repeat, Eternally

Chapter WEE. NOW I'M SCREWING WITH TITLES HAHAHA HA!

The attack of the Gaster Blaster bounced off of you like a rubber ball.

The attack hit Devil!Sans, and sent him flying again. "I'm... I'm okay...~! Dad hits me like this all the time...~"

Well, at least he's positive about it.

Anyways, how are you today? Yep, I'm talking to you. Ajax wants to know! Yeah; I'm really actually referring to myself in third person, and I'm breaking the fourth wall!

You will Ajax to shut up, and it does. It seems like Ajax tends to refer to itself as gender-neutral, so it might be a monster of some sort. Or maybe it's a human? You try to imagine Ajax, but it mentally blocks you.

Uh, uh, uh. Tsk tsk; trying to imagine me, right in the middle of battle? We can put in some sexy time later, but you're not allowed to see what I look like. I'm way too hot for you.

Now, this guy obviously sees he can't hit you with magic, so...

Devil!Gaster sped towards you with the intention of physically hurting you, rather than magically.

Gold Soul Special Activation: Physical Immunity!

Honestly, I can't stack activations, so your magical property change will be a bit... strange. Gold and Silver are my best Special Activations; Gold is immunity to physical attacks, while Silver is immunity to magical attacks. They only last for ten seconds, so make it count!

Devil!Gaster hit you... or at least, tried to. He went right through you, which was slightly creepy.

Alright, now it's time for your counter-attack! Quick, catch up to him before he falls with this one!

Green Soul Special Activation: Speed!

You dissappear. No, you literally disappear. You reappear in front of Devil!Gaster. Now, clock him! Don't worry, it should only knock him out a tiny bit.

Brown Soul Special Activation: Strength!

You clocked him in the face, causing a large crack to appear on his skull. It literally ran from his forehead and closed at the chin; there would be no healing that one.

Devil!Sans stood off to the side, clapping. "Huh, I've never seen someone with so many souls....~ You must have killed a lot of humans....~"

What?! How did this guy see through my technique?!

You gasp. You had been using the souls of fallen humans?!

Now, now. Calm down. We can be rational about this. All I've been doing is changing your soul's properties. Kind of like switching your soul out for another soul... the amount of people dead is irrelevant.

But it was relevant!

Look, b*tch. Don't make me hurt you. I really, really don't wanna go through a true reset.

Do you understand me, or must I put you through intense suffering? I am sure I can devise a personal hell for you.

Ajax's personality had changed from bubbly to dark.

If I need to, I can kill everyone you love. So, calm the hell down... I'm offering you power. Who cares if it's stolen, anyways?

They're already dead, so all you should do is use them all up. Trust me; they disappear after ten uses each. It's not like... oh, wait, nevermind. Every time you use one, it puts extreme strain on it, so right now, a couple are probably screaming in agony.

Hey, you're not going to back out on me now, are you?

If you do, I'll kill everyone.

*WHAT DO?!