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We think the anus is tight, and tight more friction, hence it should be awesome. There is a lot of advice regarding anal sex floating around the internet. With that in mind, there are two primary pieces of the human anatomy involved in butt sex, the anus and the rectum. If you get involved in some of the more elaborate activities like prostate play with a male, or fisting of the anus, other parts of the internal anatomy will be involved. Anal sex or anal intercourse is generally the insertion and thrusting of the erect penis into a persons anus, or anus and rectum, for sexual pleasure. Other forms of anal sex include fingering, the use of sex toys for anal penetration, oral sex performed on the anus (), and pegging. Although anal sex most commonly means penileanal penetration, sources sometimes use anal intercourse to. Similar searches pussy anatomy oh yes mommy mom nudist family orgy anatomy class education guide real anatomy mom anatomy explain anatomy college anatomy mom educational teach anatomy teaching anatomy vagina anatomy mom teaches anatomy anatomy of sex instructional family sex education anatomy female mom teaches son anatomy teen anatomy mother. Anal canal the anal canal is about a 1-2 long channel that is controlled by two muscles, one at either end. On the outside is your anus (asshole) which is kept closed by your external sphincter muscle. Infection with human papillomavirus (hpv), anal sex, and multiple sexual partners increase the risk. Anal herpes anal sex may spread the herpes viruses hsv-1 and hsv-2. The thicker ones are better for anal sex, a notion which is confirmed by at least the theoretical anatomy of the anus. Similar searches vanessa aspillaga pussy anatomy erotic obsession anatomy of sex full movie sons taking turns on mom lust enough to share human anatomy lily labeau anatomy teacher law and orgasm niki rubin melissa moore head and breakfast fingering brutal daddy boy screaming anatomy of sex showtime anatomy of desire kimmy granger amanda harker. Sex hormones if youre a young person, youve no doubt heard all about your raging hormones. Grr! Androgens, estrogens and progestins are sex hormones produced by the adrenal glands by people of all sexes, with some difference in amounts between all sexes, and also in the testes, ovaries and a couple other parts of the body.