Chapters: 2/? Fandom: Undertale (Video Game) Rating: Teen And Up Audiences Warnings: Creator Chose Not To Use Archive Warnings Relationships: Sans (Undertale)/Reader, Sans (Underfell)/Reader, Sans (Horrortale)/Reader, Sans (Underswap)/Reader, Sans (Undertale)/Original Female Character(s) Characters: Sans (Undertale), Original Female Character(s) Additional Tags: Reader-Insert, One-Sided Attraction, Animalistic Sans (Undertale), Badass Reader, Knotting, Male Masturbation, Primal Sans (Undertale), Ecto-Penis (Undertale), Ecto-Tongue (Undertale), Ecto-Genitalia (Undertale), beasttale, Mating Cycles/In Heat, Undertale Skeletons in Heat, Dry Humping, Strong Female Characters, Non-Traditional Alpha/Beta/Omega Dynamics, Trapped on an island, reader gives the skeles nicknames, reader was in the military, reader has ptsd, Reader curses, weird shit happens, Porn With Plot, Possibly Unrequited Love, Possessive Behavior, Obsessive Behavior, My Horrortale Sans is inspired by Aggre(g/v)ation, Reader is not easily flustered, Angst and Fluff and Smut, Eventual Smut, Angst and Drama, get ready for this shit show, Bara Sans (Undertale), smol sans - Freeform, Tall Reader, POV Multiple, Reader Is Not Frisk (Undertale), Reader Is Not Chara (Undertale) Summary: āØ(Y/n), a high ranking Platoon Commander in the Military, was on a mission with her squad when her plane was shot down by an enemy ship, leaving her stranded on an unknown island, with none of her comrades in sight.āØIt would have been all fine anā dandy⦠if she wasnāt surrounded by three Alpha Skeletons and one Omega Skeleton. All of which want to fuck or be fucked by her.āØSo now here she is, having to assess her dominance as an āAlphaā to get by with her limbs still attached and her clothes still in one piece. Even if one of them looks like he came straight from Satanās asshole.