21 is not so old to be a virgin, but whatever the reason for your lack of sexual experience, it’s not your penis. Now you may be using that as an excuse, but I’d be willing to bet that no young lady has seen it in its erect state, so no one has been judging it, one way or the other. The most important factor to good sex is having the overall knowledge of how to please women, and penis size is only one factor, and not the most important one, at that. So stop blaming your penis, and start socializing and meeting young ladies. Don’t look at them as potential sex partners, but rather as friends first, and then someone whom you can care about emotionally. If you develop a good relationship with a young lady, when the time comes to have sex, you won’t have any worries about the size of your penis. On the other hand, if you meet someone who is willing to have sex with you on the first date, which means she’s quite experienced and is very much into sex for her own pleasure, then being inexperienced and having a small penis could make the evening traumatic. So to avoid that, start looking for a young lady to love and who will love you back. Then you’ll have no problems with your sex life.