The vagina is not a thing, it is a space within the female genitals that expands to accommodate the penis. The cervix opens into the vagina a couple of inches inside. During intercourse, the penis will pass by the cervix, and the vagina will expand to whatever length the penis is. The uterus is about the size and shape of a pear.

Penetration of the vagina
Video nu xxx
Sexual intercourse is sex with penetration of the vagina or anus by a hard penis. A man who is aroused can get an erection. The penis swells with blood. It gets bigger and harder and it rises up. If you do not have a desire to have children at the moment, use contraception. A man and a woman, or 2 men, can have sex with penetration of the anus. A woman cannot get pregnant through penetration of the anus. However, make sure that semen does not enter the vagina. Some women want to have sexual intercourse during their menstrual period , others do not. A woman can have sexual intercourse during her menstrual period if she wants to.
Account Options
But this is not a perfect world, and the truth is that size can sometimes be an issue. Your penis and her vagina might not always match up perfectly. We checked in with gynaecologist Dr Lauren Streicher, author of Sex Rx: Hormones, Health, and Your Best Sex Ever , to find out if a penis can ever be too big for a vagina - and what to do if you find yourself dealing with a tight fit. That said, there are exceptions. And if that's the case, the important thing is that you need to figure out why it's happening - because it can be solved," says Streicher. How Do You Stack Up?
Obviously we all know that, but it bears constant repeating. Seriously: respect. What can you do, penis? And we all know that's the measurement that matters. The typical baseline diameter of a vagina is about 3 cm, according to Yale Medical School clinical professor of obstetrics and gynecology Mary Jane Minkin, M. You do the math. Actually, we did it already. And wow.