Undertale || Sugary Heart || Frisk + Sans

A heart full of sugar, sugary sweet so much they can't resist it. As sweet as they are, their heart would be the perfect item used to describe this.

"You're so sweet you're going to give me diabetes."

Frisk x Sans story, please do not read if you hate the ship. Thank you very much. And, it's a bunch of fluff... and no lemons so yeah--