In Love With A Gang Leader!

Sidney is your normal girl. She likes to go to party's.( sometimes.) She loves hanging out with her best friends.
Harry is your normal bad boy. Smokes, does drugs, get drunk almost every night, and is a manwhore. Did I mention that Harry is in a gange?
When Harry goes to a party all he is thinking about is getting drunk and having sex with some random chick. But when he lays eyes on Sidney he thinks' She has to be mine.'
When Sidney goes to the party all she thinks about is having a good time with her friends. What did not expect to happen was catch the bad boys eye.
What happens when Harry force Sidney to go out with him? What happens when Harry decides to tell her is in a gange?