Alright, so I go this girl in my bed and we're goin at it for like 15 minutes, and she gets happy, but all the sudden I go limp, and I can't get it back up. I'm 20 years old and very frusterated right now. I was wondering if I could have a bad reaction to the type of condom I use. We had sex the other day with the same type condom and it went just fine, but I was in the mood. Tonight i just kinda forced my horniness and got it up and had fun for awhile and it turned out to not be so fun. She gave me oral a few days ago and it went well... so could it be that the condom is just taking too much of the sensation away for me? I need some help.
I don't think it was the condom, sometimes we just aren't in the mood or the situation doesn't feel right. Its really difficult to "force" things and lots of other things play a role. Tired, stressed, any alcohol or even cigarettes can lead to what happend. Main thing is you know that it works, I wouldn't worry too much about it because that WILL make it worse next time out of the gate. You may try a different condom that "fits" better but I suspect this had nothing to do with the condom.
If you weren't really in the mood, then after a while the system kind of shuts down. It is kind of like natures way of telling you to slow down a little.
Condoms certainly rob you of sensitivity, and may have played a role, but I tend to doubt it. It would more likely prevent you from ejaculating, but not make you lose an erection.
I would suggest you relax and try again after you have rested and after you really want sex. Don't push things and you will probably be fine.
Penis problem! 
