How painful is the first intercourse?
I am assuming that you are asking from the perspective of a
woman who is having vaginal inercourse for the first time. The
experience can range from unpleasant to mildly painful to quite
painful with screaming and struggling on the part of the woman. It
has a lot to do with the man she is with. But even with the most
loving, patient, and skilled man the first sexual experience is
rarely enjoyable for the woman. The vagina of a virgin is a
collapsed, closed, muscular tube with a tiny opening for the
passage of menstrual blood. Entry of a fully erect penis for the
first time, especially if forced or without enough arousal on the
part of the woman is bound to be painful. Then there is the rupture
of the hymen which is a delicate membrane partially covering the
opening to the vagina. This causes bleeding as well as some pain as
hymen does have sensory nerve endings. The powerful thrusting of
the penis by the man who is usually very excited literally shakes
the woman's whole body. Some men put their entire weight on the
woman and squeeze her strongly especially as they are near orgasm.
All this can make for a painful first experience for a woman.