Having sexual intercourse at precise times so as not to coincide with ovulation (not very reliable) or not having sexual intercourse at all (100% reliable).
Yes. I've done it many times.
Well thats dependent on how many times he has sexual intercourse or masturbates in that day!?
The difficulty in doing research involving sex involves outright lies. For example: For years men claimed they had sexual intercourse 3 times a week. Women claimed they had sexual intercourse 2 times a week. Something was wrong. It is impossible for a man to have sexual intercourse without a woman also having sexual intercourse. A whole lot of lies were being told. With something like sexual expression, there is the question as to how much is sexual and how much is style. When every woman wears a bikini, are all being sexy or are they all just going swimming? When is a woman flirting and when is she simply being pleasant. It is hard to tell. Good luck with your project.
There is no set number of times. You CAN get pregnant the very first time you have sexual intercourse.
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There is nothing wrong with it, in fact, some believe it is healthy to do so (for the benefits of stress relief and various other reasons). Although it would be quite difficult to climax all four times, even during sexual intercourse.
in the Tudor times the theatres develpoed by people having sexual intercourse whilst on stage, and screaming ohh yes harder baby !!!
Girls have two openings, the vagina for sexual intercourse and childbirth, and the urethra for urination. The urethra is separate from the vagina to prevent bacteria from entering the urinary tract during sexual activity.
Yes
It depends on one's age, health, gender, and orgasms.the average frequency of sexual intercourse in the US is 112 times per year (age 18-29), 86 times per year (age 30-39), and 69 times per year (age 40-49)
VERY. Its happened to me too many times.