She can't make me finish. Please help. I (21m) have been dating my girlfriend (18f) for over a year now and we've been having sex regularly (4+ times a week). Every now and then I can finish inside her,  but normally I finish myself with my hand.  Lately I can barely even finish by doing that.  I feel bad and I can tell it makes her feel bad that she can't do it herself.  She was my first and I feel like my long fapping career (since I was 12) may have attributed to this. When I masturbate it takes less than 10 minutes.  Does anybody know what might help? 