Bone Hangout!

DESC
undertale Sans,underfell Sans and Underswap Sans and underlust Sans have beeb gathered by Ink Sans for a bit of fun with the other Sanses,but ink suddenly acts a bit weird and things go sexual.

this story will be rated T/R due to some mature jokes but i promise you that's not what you are supposed to expect.
anyways...
Also the following AUs are not mine of course!

This is my shortest story yet,hope you enjoy it!!