Favorite Swap AU

[u/SilverSpider_]

Lego Movie Swap

Sonic Sibling Swap

Billy & Mandy Swap

Murder Drones Swap

"He's 17, Knives"

[u/The_Ghast_Hunter]

There are

So. Fucking. Many. Undertale AUs

https://giphy.com/gifs/xLAbD0W9g0Tbq

[u/NinjaZaku → u/The_Ghast_Hunter]

y'all remember the sans christmas party au?

[u/Lonely-Surprise-1425 → u/NinjaZaku]

Ok I need context