So I finally gave-it-up! I'm not expecting any applause or teasing but I finally engaged in full intercourse with a women. I'm not totally innocent but this was the first time to really do "it". She'd done it before and it was great experience for me. Since doing it something bothers me. I've tried to do internet search but can't find the answer. I'm hoping someone can help. Things proceed along I guess pretty normal. I was able to penetrate but not fully. I knew she wasn't a virgin but I still was really slow and careful while doing it. As things got hotter I got a little more aggressive. Eventually I could feel something at the back of her vagina. I could push against it and I could tell it felt good for her. Eventually I pushed past what I was feeling and it felt extremely tight around me and then it almost felt like it popped. It felt awesome for me but it might of been a little uncomfortable for her. She didn't say anything but she slowed down. If I pulled back a little I could feel that I came past whatever I had found, if I was careful I could push it past it again. I know this all sounds kind of stupid but is it possible that was going past her cervix? I just kind of want to know so I know if I shouldn't do that again or if it's O.K.?