Frequent, especially prolonged anal sex often leaves tiny tears (anal fissures) around the anal opening. This prompts the internal anal sphincter to contract strongly

Activities: Insertive vaginal sex Vaginal sex is when a penis is inserted into a vagina. The partner inserting the penis in the vagina is having insertive vaginal sex.

A abortion . A procedure to intentionally end a pregnancy before a birth. Miscarriage is also sometimes called “spontaneous abortion,” even though it is usually not

For Gay Men, Zero HIV Transmissions with Condomless Anal Sex and Undetectable Viral Load in PARTNER Study. July 20, 2016, by Emily Newman

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.

Anal sex with a strap-on, also known as “pegging,” challenges traditional gender roles in the bedroom.

For more information on G-Spot play, read The Good Vibrations Guide: The G-Spot by Cathy Winks. You may also wish to read our guide to erotic massage to learn more

The human anus (from Latin anus meaning “ring”, “circle”) is the external opening of the rectum. Two sphincters control the exit of feces from the body during an act

90% 0.67% 0.30% negligible 0%–0.04% ~0% 0.08% 0.30% 0.04% 0.38% 0.11% 0.62% 0.65% 1.43% NONSEXUAL MODES^ Blood transfusion Needle sharing (injection drug use)

What is a female condom? Female condoms are an alternative to regular condoms. They provide pretty much the same great protection from pregnancy and STDs.