I love the Undertale headcanons! There's not enough of them! Do you have any Regressor Sans headcanons?
Little!Sans Headcanons
A/N : Special interest go brr. I’m very happy you and another anon asked for these! I really like writing Undertale stuff so this was really fun! (I also self project onto Sans a LOT)
His long term caregiver is Toriel! She found out about his regression when they were talking through the door. He had slipped and she comforted him! Papyrus is his go to babysitter.
Sans regresses to around 2-5, rarely going into baby space. His regression tends to be involuntary rather than voluntary. (If you had to put it on a scale, 90% involuntary and 10% voluntary)
He really likes picking up stuff with his magic when small, he can’t pick up anything too heavy when regressed though!
He steals borrows papyrus’ scarf a majority of the time. He likes to cuddle up with it, it makes him feel all safe and comfy.
He really likes being called “kiddo” when regressed. (Or just any nickname to be honest)
He has a goat stuffie that he named “Tori!” after Toriel! He takes it with him basically everywhere he goes. Especially if he’s not with his caregiver (not because he misses her, nooo /s /p)
When they moved into their new house on the surface, (Sans and Papyrus) they decorated a room just for lil Sans! It’s main theme being blue and a light grey. He’s still a bit embarrassed about it but, his brother is always there to assure him that it’s fine.
Do not trust him with markers, he will try to draw on his face. And/or eat them. (/hj)
Sans is very quiet when he’s regressed. He definitely isn’t a chatter box, though on the rare occasion he is, he talks a lot. (Or well, it’s usually incoherent sentences since he’s usually on talkative when he regressed to younger ages)
He still takes a bunch of naps even when small. He’s just very tired and needs his rest! He will never say no to nap time, but he will want a story.















