Anal sex or anal intercourse is generally the insertion and thrusting of the erect penis into a person's anus , or anus and rectum , for sexual pleasure. While anal sex is commonly associated with male homosexuality , research shows that not all gay males engage in anal sex and that it is not uncommon in heterosexual relationships. Anal sex is considered a high-risk sexual practice because of the vulnerability of the anus and rectum. The anal and rectal tissues are delicate and do not provide lubrication like the vagina does , so they can easily tear and permit disease transmission, especially if a personal lubricant is not used. Strong views are often expressed about anal sex. It is controversial in various cultures, especially with regard to religious prohibitions.

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Anal sex - Wikipedia
If you've ever wondered what things look like to your vagina mid-bone, you're in luck. A few intrepid researchers decided to film sex from the vagina's point of view, and the result is a fascinating video that's years old but is resurfacing again to everyone's benefit. In this segment of the episode, testers attached cameras to one of the woman's nipples, the man's penis, inside the woman's vagina, and both people's skin. Once their parts were fully equipped with camera gear, the couple started to have sex in the missionary position. Thanks to the various cameras, the resulting video has a few different angles—it's clear that the experimenters were nothing if not thorough. Even though the video's soundtrack is the epitome of a porn jam, it still drops some legitimate sexual knowledge. For example, the man's pubic bone can stimulate the clitoris while his penis works the G-spot, and when a woman gets closer to orgasm , she "may feel her heart beat in her vagina and a throbbing in her pelvis.


The mystery of the female orgasm
From the existence of the G-spot to the origin of multiple orgasms, female sexuality once mystified scientists. But as Linda Geddes discovers, radical experiments are finally revealing some answers. On my washing machine, there is a lock. To activate it, you must hold down the start button for a particular length of time at just the right intensity; too soft and nothing happens, too hard and the machine beeps angrily at you. Finally, an entangled heap of damp but refreshed clothes tumbles out at the other end.




Description: They found that even when their injuries blocked the known nerve pathways in the spinal cord from the genitals to the brain, these women could still feel when their vagina and cervix were being touched. It gets even more complicated; in yet other women, vaginal penetration might simultaneously be stimulating both the external and the internal parts of the clitoris. The woman had been born without a bladder, and had undergone extensive reconstructive surgery to correct some of these problems.