The anus is surrounded in its length by folds called anal valves, which converge at a line known as the pectinate line. This represents the point of transition between the hindgut and the ectoderm in the embryo. Below this point, the mucosa of the internal anus becomes skin.[4] :397 The pectinate line is also the division between the internal and external anus.

So I withdraw and push in a well lubed but pretty big thick black vibrating polyurethane offset rotating dildo, which once it’s five inches in I switch on and it’s buzzing gently and (invisibly) twirling around offset inside her anus – and STILL it’s her first time and now she’s bloody mad for it. I get the vibrations and the whirling to maximum – she’s almost babbling with pleasure. All on her first anal date!!


Oral sex and mutual masturbation are more common than anal stimulation among men in sexual relationships with other men.[1][53][64] According to Weiten et al., anal intercourse is generally more popular among gay male couples than among heterosexual couples, but "it ranks behind oral sex and mutual masturbation" among both sexual orientations in prevalence.[1] Wellings et al. reported that "the equation of 'homosexual' with 'anal' sex among men is common among lay and health professionals alike" and that "yet an Internet survey of 180,000 MSM across Europe (EMIS, 2011) showed that oral sex was most commonly practised, followed by mutual masturbation, with anal intercourse in third place".[9]
These days though, butt play is hot. Whether it’s Marnie getting rimmed on the hit HBO show Girls, or Harvard University offering an ‘Anal Sex 101’ workshop during their annual ‘Sex Week’, anal sex has decidedly outgrown its verboten past. A 2010 study published in The Journal of Sexual Medicine found that some 40 per cent of women ages 20-24 have engaged in anal sex at least once. And more than half have probably played around with oral or digital stimulation, whether on the giving or the receiving end.

10. Start small. The whole point of anal play is to keep it simple before working your way up. "To prepare a bottom for sex play, start with fingers, tongue, or a very small sex toy designed for butt play," says clinical sexologist Nancy Sutton Pierce. "An option is to purchase a butt plug kit that uses several plugs of graduating sizes just for this training."
Oral sex and mutual masturbation are more common than anal stimulation among men in sexual relationships with other men.[1][53][64] According to Weiten et al., anal intercourse is generally more popular among gay male couples than among heterosexual couples, but "it ranks behind oral sex and mutual masturbation" among both sexual orientations in prevalence.[1] Wellings et al. reported that "the equation of 'homosexual' with 'anal' sex among men is common among lay and health professionals alike" and that "yet an Internet survey of 180,000 MSM across Europe (EMIS, 2011) showed that oral sex was most commonly practised, followed by mutual masturbation, with anal intercourse in third place".[9]

The tissue and skin around the anus acts as a protective barrier for the bottom half of your digestive tract. However, the tissue inside the anus is thinner, delicate, and more likely to tear and bleed as a result of penetration. This increases the likelihood of passing infections, viruses, or bacteria between partners. Even two partners who don’t have any sexually transmitted infections (STIs) can still pass bacteria between each other through these tears in the skin.

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