Slexie (a love story)

Mark is a plastic surgeon who has sex with anyone that moves and never felt love in his life, accept for Addison who moved.
Lexie is an intern and Meredith's little sister. she's pure and sweet and maybe has a dirty side but still cares for people none the less.
Lexie always thought Mark was heartless and Evil
Mark always thought Lexie was too pure and caring for his own good.
what happens when Lexie is put on his service...