its an alternative world fic... where kagome meets an alternative world sesshomaru whom she saves in a fighting match and brings hom to her world where another sesshomaru event happen but eventually kagome unintentionally lays claim on both demons when kagura tries to take one and both sesshy become her mates thats all I can remember... if anyone recognizes this fic please tell me... Thank you.

I think you are searching for this fic:

www.fanfiction.net/s/3927981/1/Simple-Kind-Of-Life
Simple Kind Of Life
By: sleepymuse
Changed from dog fighter Kagome leaves the feudal era for a normal life, but her guilt makes her return. The well sends her to another world where she finds Sesshomaru and she brings him back with her. A slip makes her claim them both. SXKS
Rated: Fiction M - English - Romance - Sesshomaru, Kagome H. - Chapters: 26 - Words: 40,240 - Reviews: 230 - Favs: 208 - Follows: 87 - Updated: Feb 22, 2008 - Published: Dec 4, 2007 - Status: Complete - id: 3927981

Rated M, so no YIMS please.