Hitting a girls cervix during sex has gotten me denied sex a few times and was the reason why I had to stop PE in the past. With the girls I dated, it was usually by accident, although I will admit to doing it on purpose several times with the girls who I had the friends with benefits thing with and I knew she was going away with her boyfriend or some other guy she’s interested in. Total douche move but hey, if all she just wanted to do was fuck me but not date me, she’s got other problems. I don’t really feel bad for the guys either as I’m pretty sure each one of them ended up with a girl that was a hell of a lot naughtier in bed.
Depending on the girl, I found hitting the cervix was easier either doing it doggy and thrusting with a bit of force at an upward angle or doing the scissors thing and going balls deep. It is easier to do after they’ve cummed once or twice and definitely wouldn’t recommend trying it before that as sex is going to end once the pain hits. If she’s still high off the orgasm you could probably hit her cervix and keep going.
Only once did I ever successfully do that while blowing my load in a girl and that was actually an accident. I normally pulled out and got her to swallow but she wanted “nakadashi” which was Japanese for “exit inside”. I got soooo turned on that I put all my bodyweight going balls deep when I finally came. She was in pain but loved how she could feel me explode several times against her cervix. Turned out the guy she was dated didn’t last long the night before and accidentally blew his load inside her plus she knew I wanted to do it because I always joked about it. Now that I think about it, that was also a pretty dangerous and douchey move but I haven’t gotten the call saying I have a kid! (yet)
If it makes any difference, all the girls I’ve done this to were all Asians between 5’ to 5’6 tall and at my PE peak I was about 7” BPEL.