details? I had sex for the first time about 5 days ago and i was thinking about it. I will explain what happened. We where on the bed making out and then she started to give me head, after about 7-10mins im guessing she was do you want to have sex and so i said sure. So we start to have sex and we go for a good 15-20mins and i am still hard nothing is wrong there, but i didn't cum. Then one of her friends nocked on the door and we had to stop. I didn't jack off for about 4 or 5 days before this and i am healthy so Why didn't i cum after 30mins of head and sex?