I have been having sex for about 2 months now, and i noticed something about me that sets me apart from other males. During sexual intercourse, i have found out that i can last for over a few hours, and i feel this is a problem considering most men are through within a half hour. i have been doing some research online, and found that circumcision could affect the penis's sensitivity. i myself am circumcised from birth and i believe that this might be the source of my problem. could anyone enlighten me about my predictament? i have no problems with pleasing a women, it's just that i outlast them and i never orgasm myself. i do not have this problem with masturbation. could someone please explain to me whats going on, and how i can change if it's possible?