Mine and Only Mine

Sebastian and Grell have been dating for years. The perfect couple. Grell is just so in love with her perfect boyfriend. He's charming, sweet, caring, understanding, and so loving. But.. He's hiding a terrible secret. And if she ever found out... He'd lose her.

(Modern SebaGrell, female Grell, yandere Sebastian

Notes: Bloody af, cussing, insane thoughts, harming oneself and of course, sex scenes. Y'all been warned)