
Pretty much the vagina is only so deep and when you hit the cervix it hurts. If they're repeatedly hitting the cervix it's going to bruise and be painful. Sometimes people even bleed if it's too rough and deep. Some women might look over the pain/enjoy it and try to enjoy the pleasure. Fun fact most women also don't orgasm from Vaginal penetration alone which is something depicted in most smut.

Yes I have lol. Just a tip when ever you become sexually active don't imagine/believe what happens in smut will happen in real life.it's not the same and is exaggerated a lot. Sex is a process and a learning experience in the beginning and always use protection even if your partner insists they pull out. You can can get stds, sti's, and babies from sex Don't get Chlymidia because Steve told you he was clean.
I kinda hate it when they say it's too deep and then they orgasm because of it. In reality when it's too deep it fucking hurts.