I had a girlfriend once who had a cervix that felt like half a golfball was inside her. My fondest memory of her is still the time she took me in reverse gowgirl and had the bottom of my cock (frenulum) rubbing against her cervix. I was stiff as a rock for the 30 minutes she was just sliding it hard for about a 1/2" back and forth.
When I was around 19yrs old I had this one small girlfriend that used to go to the bathroom right after we had sex and I never really thought anything of it?? A couple of years afterwards (I was married by then), she told me that it felt like someone was punching her stomach and she would actually throw up in the bathroom! Guess at that age its all about busting a nut, try to be much more considerate now...
And she never spoke up? :frown1: I would feel guilty if that ever happened to me.