Hey guys, im a part time lurker, and i have to say, ur advice are really helpful and just want to mention that. Ok back to the topic.

I known my gf for 3 years, and a month a go we decided to go out. We are really close and love each other alot. So we decided to have sex, taking the neccesary precautions. Condoms were being used. We are both 17 btw

Well to start off, we did foreplay for atleast 2 hours because we were enjoying our self. I decided to go in, using a condom ofcourse. We had sex for atleast 20 mins doing the various positions, the problem is that i couldnt come. I dont know why, the foreplay was great the sex was great. I just cant understand it. Any opinon would deff help.
Peace out guys and thanks again, Nite

Sometimes guys have a hard time cumming with a condom on because of reduced sensation - especially if it has helped you stay hard longer. Your penis doesn't get the message - OK I've held back all this time, now I don't have to. So often guy in your situation enjoy the sex as long as they want, but actually have their orgasm afterwards with the condom off with her masturbating you by hand or mouth. As the twio of you get more intuned with each other this is likely to be a problem that goes away on its own.

Susan

Long make out sessions can be rather tough on a male where he may have what he feels is a lot of pre-cum from the Cowpers glands, where it is actually seminal leakage from the prostate ( you can only hold back so much pressure) so when it came to having sex, there may have not been much left to ejaculate and her and your body heat did you in. I've been there. Best idea is to stop, come up for air...make sure you pee, cool yourself off with cold water and washcloth, and go back to foreplay then try again. Now, it will be way better and much stronger. This also goes for multiple sessions.