Of course it hurts if you go too deep! Her vagina is not infinite There is a cervix where the vagina ends and hitting the cervix is extremely painful for many women. Kind of like getting kicked in the nads. Repeatedly, especially if you don't stop thrusting.

And yes, I know this from experience. I've had sex be too deep, and it hurts! It can feel like air being pushed up, and then a sharp pain that fills your stomach.

I agree. Just keep trying different positions that allow for more shallow penetration, such as her on top or bottom, but with her legs together, or spooning, or her on top and in control- you can't thrust!!

Keep trying, you'll figure it out.

Just try to find a position where you can feel satisfied with your depth and her too. The first moderator is right, if you go too deep you can hit her cervix, and that hurts lik e hell! It's happened to me before, and it can completely ruin the experience if you hurt her too badly, lol. Just be careful.

My bf is very big and if he goes in too deep its real painful and it ends up hitting my cervix. Just try to more careful with your gf and not go in all the way.

I had this problem recently! It really hurts, like a sharp stinging sensation deep inside. But sometimes it can kinda feel good, as long as the girl is really aroused and at the right 'time'. I read that the cervix shifts positions sometimes.

It's one of the bad things for big guys, they can't go as buckwild as they want. Don't be afraid to try different things that you're both comfortable with! And if something is painful or uncomfortable, make sure to stop and try something else. Sex is most enjoyable when both partners are comfortable and pain free. (though sometimes a little discomfort/pain is ok, depending on what each partner likes. Like I really don't like going down on a guy, but it's not unbearable and I'll do it every now and then as a 'gift' to my man.) Good luck