ecto-belly

WARNING: 16+, Contains Undertale feederistic content (I.e- getting fat. I.e- liking it), also called ‘Undertum’. If this is not your thing, please keep scrolling. Thank you. Summary: Sans and (Reader) enjoying a relaxing evening of Movies and Chill, with a little tummy fun. ONESHOT. Read the tags, and it'll make sense. LAST WARNING, THIS IS BELLY FETISH TERRITORY!!! IF YOU DISLIKE, LEAVE!! Thank you again.