A cute girl walks in and sits next to him and says “are you are real biker?”
He said “well, I build what I ride, I ride over 25,000 miles a year and am not afraid to wrench it when it needs it, I guess that makes me a real biker. He said, “would you like a ride?”
She said, “I don't ride with guys, I am a lesbian.”
He said, “How do you know you are a lesbian”?
She said “When I wake up, I think about women, when I go to the park, I think about women, when I go to sleep I am thinking about women.”
After finishing her drink she left. Soon after, a couple walks in and sits down next to him and asks “are you a real biker?”
He said, “I used to think I was, but now I think I am a lesbian.” 
gotta love it