What is the missing number?

A tough looking group of hairy bikers are riding when they see a girl about to jump off a bridge, so they stop. The leader, a big burly man, gets off his bike and says, "What are you doing?" "I'm going to commit suicide," she says. While he doesn’t want to appear insensitive, he also doesn’t want to miss an opportunity, so he asks, "Well, before you jump, why don't you give me a kiss?" She does, and it is a long, deep, lingering kiss. After she's finished, the tough, hairy biker says, "Wow! That was the best kiss I’ve ever had! That's a real talent you’re wasting. You could be famous. Why are you committing suicide?" "My parents don't like me dressing up like a girl…"