An Archive of Our Own, a project of the Organization for Transformative Works
Here you go. Have some sin. I blame @tyranttortoise
Chapters: 1/1 Fandom: Undertale (Video Game) Rating: Explicit Warnings: No Archive Warnings Apply Relationships: Sans/Sans (Undertale), Sans/Sans/Sans Characters: Sans (Undertale), Sans (Underfell), Sans (Underswap), US!Alphys, US!Undyne, US!Paps Additional Tags: Smut, Sexy Times, tiny bit of a plot, Fluff, because i'm incapable of writing smut with no fluff, apparently, Spitroasting, sexual curiosity, Threesome, red and sans are together, blue's an innocent little shit, despite what he says, Consent, ALL THE CONSENT, red takes charge, Threesome - M/M/M, sanswich, Ecto-Penis (Undertale), Ecto-Tongue (Undertale), Ecto-Genitalia (Undertale), I love that these ecto-tags are Undertale specific Summary:
Blue is tired of being treated like he's an innocent child. He's not even a virgin anymore! When he hears a term he's unfamiliar with, he pretends to know all about it to prevent himself being the brunt of more jokes. Not knowing what it is eats at him, and he goes to Red, the one person who won't laugh at him or call him a child for his curiosity. After Red explains what spitroasting is, Blue kind of wants to try it. Red invites him into a threesome with him and his boyfriend, Sans.
