Hi. I had a doubt regarding intercourse. I used to have sex with my girlfriend of age 23. We will have some foreplay and smoothes to make ourselves turn on. But whenever I inserts my pennis into her vagina she says paining. Before the insertion she used to enjoy those foreplay etc. Is this regular/normal that a women says paining during the insertion of pennis? In porn videos movies the women are enjoying during the insertion pf pennis. Please tell me anyone what is the problem for this? Somebody suggest me what I have to do?