Baked bones

It does say the fire in Toriel's fireplace is so pleasantly warm you could stick your hand in it without damage. Sans just drawn to warm places to sleep like a cat.

Human kid still getting used to the magic down there.


sort of a follow-up


Edit - A dub!
Another!

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Suomen Kieli

Sans, Papyrus, Toriel, kid (c) Undertale: Some post-pacifist scenario where everyone lives in the same house or something idk