Forgor the addition lol anyways of course part of what brought that thought up was thinking abt that uf au where monsters surface much earlier and Gaster raises Sans and Papyrus on the surface. He'd regularly use Papyrus as a personal heater. Papyrus will just be minding his own business and then Gaster is like Have I told you how much I love you recently son? And then hug him for fifteen minutes to warm up. Papyrus is used to this. In the winter he has to sit in the middle for movie nights so Sans and Gaster can use him as their kotatsu