My sex problem
I'm with my girlfriend for two years, between us has been very good, we like to spend time together, we have common interests. She's my ideal.
Our only problem is sex. I can't endure longer than a few minutes. I get nervous about it and I don't want to have sex, because I am afraid of another failure. My girlfriend doesn't give me the feeling that something is wrong, but I feel that she isn't completely satisfied with our sex. I don't know what to do, I can't control it.