Sexual orientation :
Fantasy VS Reality
Yes, I actually registered on this forum to address this "issue", because my jaw just about bounced off the keyboard when I read this one. I will not give my opinions on this fantasy, but here are the facts, Jack:
Sorry, not true, not true, but, read on...
From Rudharddick:When a woman climaxes during sex, and it is a really strong one, the cervix is actually opening to allow the penis head, entry. The climax is called a "baby maker" and the woman's body does this to ensure a pregnancy.
From edward79:well he is right, never heard that before but i learned something, go to wikipedia and search cervix and half way down the page i wish i could post a link.
I went to Wikipedia, and here is precisely what it says:
And as for the actual physiology of the cervix, here is your anatomy lesson:
During menstruation the cervix stretches open slightly to allow the endometrium to be shed. This stretching is believed to be part of the cramping pain that many women experience. Evidence for this is given by the fact that some women's cramps subside or disappear after their first vaginal birth because the cervical opening has widened. During childbirth, contractions of the uterus will dilate the cervix up to 10 cm in diameter to allow the child to pass through.
During orgasm, the cervix convulses and the external os dilates. Dr. R. Robin Baker and Dr. Mark A. Bellis, both at the University of Manchester, first proposed that this behavior worked in such a way as to draw any semen in the vagina into the uterus, increasing the likelihood of conception. Later researchers, most notably Elisabeth A. Lloyd, have questioned the logic of this theory and the quality of the experimental data used to back it.
You will notice that it says NOTHING about the penis penetrating the cervix into the uterus. The opening of the cervix to allow for the shedding of the endometrium is 1 cm or less, and this would NOT allow for penile penetration. In fact, there are times when the cervix can't be fully dilated even for childbirth, and then a c-section must be performed. My step-daughter just had her first child on 12/12, and that is PRECISELY what happened to her, and I happened to have had this discussion with her doctor at length as a result.
The portion projecting into the vagina is referred to as the portio vaginalis or ectocervix. On average, the ectocervix is 3 cm long and 2.5 cm wide. It has a convex, elliptical surface and is divided into anterior and posterior lips.
The ectocervix's opening is called the external os. The size and shape of the external os and the ectocervix varies widely with age, hormonal state, and whether the woman has had a vaginal birth. In women who have not had a vaginal birth the external os appears as a small, circular opening. In women who have had a vaginal birth, the ectocervix appears bulkier and the external os appears wider, more slit-like and gaping.
The passageway between the external os and the uterine cavity is referred to as the endocervical canal. It varies widely in length and width, along with the cervix overall. Flattened anterior to posterior, the endocervical canal measures 7 to 8 mm at its widest in reproductive-aged women.
The endocervical canal terminates at the internal os which is the opening of the cervix inside the uterine cavity.
There are pockets in the lining of the cervix known as cervical crypts. They function to produce cervical fluid
Hence my posting.