Okay so this one is during Halloween and I've looked everywhere for it I swear. Its a modern fic.
Kagome is walking through the woods and I think shes dressed as red riding hood....not sure. Anyway she was at a party and Inuyasha warned her not to go out because demons go crazy in heat or something during this time. But she goes anyway like for a walk, and runs into Sesshomaru whose all seductive and says something to the equivalent of "you'll make a fine bitch" and is ready to mate her and all that jazz, obviously this is MA (I am of age), Inuyasha starts calling her and he demands she not leave but she disobeys and runs to him (he gets pissed). Inuyasha brings her to his dad and his all like, shes Sesshomaru's mate and his coming for her there's nothing we can really do but accept it.

Thats all I can really remember I hope its enough.

oooooh, I wanna read this now...hope someone knows the title and author.

I think this may be the one you're looking for:

dokuga.com/fanfiction/story/8715/1

All Hallows' Eve

Kagome realizes that taking a walk to escape a party on All Hallows' Eve is not the best idea...

Rating: MA