All I can remember about it: (I know it's OLD...like maybe 10+years? -So I really think it's on spark but I have no clue.)
Kagome used to be in a friends w/ benefits relationship with Sesshomaru, it's a controlling kind where she is a super sub. it seemed very dubcon
Sango absolutely hates it
Kagome is getting married or has been recently engaged
MALE IS NOT INUYASHA
no idea if Inuyasha is even in the fic tbh
He roles up into town and Sango basically tells her NO DON'T DO THIS...she does this (IE cheats on the <fiance> with Sesshomaru because Dom said so?)
they bang semi graphically...so it's either MA or NC-17(spark?)
and I know they have a HEA

I've gone nuts trying to search through all the possible tags I could think of it having in the summary but it's not cooperating. This was also way before I got an account to actually save it on. Also my stupid summary is no indication on the actual writing because it's wonderful. One of the first interesting stories I read for this ship.

Thanks to whoever helps!