The Onceler's Harem: A Onceler x Jack Frost x Sans Fanfic

Hey, please don't read this if you're not older than at least 14! There may be some jokes and content in here that could be inappropriate for anybody younger than that! However, most people won't listen to that anyways. But, don't say I didn't warn you. (i'm actually not sure how bad this'll be though i mean i just s...