20 year old guy, never kissed a girl.?

I'm a 20 year old guy who has never kissed a girl or had a serious relationship. I'm in college now and I feel the pressure of finding a girlfriend. I have some close friends that are girls but I believe that they don't see me more than a friend. I've tried asking five or six girls out over the course of my teenage years, but each one just used me for my intellect. I'm serious about my studies, but I want a girlfriend. What should I do? Am I a "lost cause"?