The missing piece - a twilight fanfiction

Rosalie and Emmett have been married for over 70 years and nothing can come between their love.. right? Wrong. That was the memo but what happens when they enroll into university with their other siblings and encounter their human mate?! That can't be possible it had never been heard of. A mated couple meeting a third mate. True mates are bonded by a true bond so how could the bond be bended to a third? Anastasia a young lady will enter the world of the supernatural and get to know that it isn't because they want to involve but it's because they are forced to bring her next to them. Their frozen hearts beat for her and pull her and once she knows they will have her and never let go.

A fanfiction of Rosalie hale x Anastasia front x Emmett Cullen. Including a lot of the cast from twilight. I take no credit of twilight I'm just making a fiction love story with a made up character. Please enjoy and leave me comments on how to improve thank you!