As food is digested, it passes from the stomach to the small intestine. It then moves from the small intestine into the main part of the large intestine (called the colon). The colon absorbs water and salt from the digested food. The waste matter that's left after going through the colon is known as feces or stool. Stool is stored in the last part of the large intestine, called the rectum. From there, stool is passed out of the body through the anus as a bowel movement. The anal sphincter (SFINK-ter) muscles control the passing of stool. These are ring-shaped muscles around the anus that keep stool from coming out until they are relaxed during a bowel movement.
^ The social construction of male 'homosexuality' in India, by S Asthana and R. Oostvogels, published in 'Social Science & Medicine', vol 52(2001), Quote: "Indian culture is highly homosocial and displays of affection, body contact and the sharing of beds between men is socially acceptable (Kahn, 1994) This creates opportunities for sexual contact, though sexual behavior in this context is rarely seen as real sex, but as play. Much of this same-sex sexual activity begins in adolescence between school friends and within family environments and is non-penetrative... Young men who cultivate such relationships do not consider themselves to be 'homosexual' but conceive their behavior in terms of sexual desire, opportunity and pleasure."
Another really common cause is a hemorrhoid (yup, we're talkin' hemorrhoids, folks) you didn't know about. This is a bit more alarming, because a hemorrhoid holds a bunch of blood inside. You'll probably feel some level of discomfort or pain if you have a hemorrhoid, and if it bursts, you'll definitely see some bleeding that should totally subside within a few days.
The Renaissance poet Pietro Aretino advocated anal sex in his Sonetti Lussuriosi (Lust Sonnets).[125] While men who engaged in homosexual relationships were generally suspected of engaging in anal sex, many such individuals did not. Among these, in recent times, have been André Gide, who found it repulsive;[126] and Noël Coward, who had a horror of disease, and asserted when young that "I'd never do anything – well the disgusting thing they do – because I know I could get something wrong with me".[127]
There are a variety of factors that make male-to-female anal intercourse riskier than vaginal intercourse for women, including the risk of HIV transmission being higher for anal intercourse than for vaginal intercourse.[3][84][85] The risk of injury to the woman during anal intercourse is also significantly higher than the risk of injury to her during vaginal intercourse because of the durability of the vaginal tissues compared to the anal tissues.[3][86][87] Additionally, if a man moves from anal intercourse immediately to vaginal intercourse without a condom or without changing it, infections can arise in the vagina (or urinary tract) due to bacteria present within the anus; these infections can also result from switching between vaginal sex and anal sex by the use of fingers or sex toys.[2][3][88]
In later Roman-era Greek poetry, anal sex became a common literary convention, represented as taking place with "eligible" youths: those who had attained the proper age but had not yet become adults. Seducing those not of proper age (for example, non-adolescent children) into the practice was considered very shameful for the adult, and having such relations with a male who was no longer adolescent was considered more shameful for the young male than for the one mounting him; Greek courtesans, or hetaerae, are said to have frequently practiced male-female anal intercourse as a means of preventing pregnancy.[114]
Most cases of anal cancer are related to infection with the human papilloma virus (HPV). Anal sex alone does not cause anal cancer; the risk of anal cancer through anal sex is attributed to HPV infection, which is often contracted through unprotected anal sex.[75] Anal cancer is relatively rare, and significantly less common than cancer of the colon or rectum (colorectal cancer); the American Cancer Society states that it affects approximately 7,060 people (4,430 in women and 2,630 in men) and results in approximately 880 deaths (550 in women and 330 in men) in the United States, and that, though anal cancer has been on the rise for many years, it is mainly diagnosed in adults, "with an average age being in the early 60s" and it "affects women somewhat more often than men."[75] Though anal cancer is serious, treatment for it is "often very effective" and most anal cancer patients can be cured of the disease; the American Cancer Society adds that "receptive anal intercourse also increases the risk of anal cancer in both men and women, particularly in those younger than the age of 30. Because of this, men who have sex with men have a high risk of this cancer."[75]
Inadequately cleaned toys can serve as a reservoir for bacterial growth and even some viral sexually transmitted infections (STIs). Using a condom with toys – even if you don’t share your toys – will reduce the risk of infections. Hepatitis C, furthermore, can survive as a miniscule drop of dried blood on a toy (or other object) for up to 3 months and become reactivated when wet. (If your eyes aren’t bulging, go back and re-read that last sentence.) (Side note: that’s why sharing cocaine straws is a very real method of Hep C transmission: cocaine causes micro-tears in the nose, leaving invisible specs of blood on the straw that harbor the virus for up to 3 months.) So instead of scrubbing your toys with a nail brush or boiling them compulsively, just use a condom and rinse them off in warm, soapy water afterwards.
One of the biggest trepidations people have about trying anal sex is that "that's where the poop comes from." But that's actually not 100% true, Pitagora says. "Concerns about dirtiness or messiness are not as relevant as you might think because feces are not stored where anal sex happens (near the anus and rectum), but in the upper bowels," they say.

6. “I’m probably an outlier on the spectrum of “tightness” that I enjoy, in that I actually don’t enjoy a tight pussy. I don’t jerk off with a tight squeeze – very, very light in fact with a LOT of lube. That being said, the best blow job for me is the kind where the woman’s mouth is loosely mocking a wet, slimy cave that you park a Prius in. I just want to feel the sliding and wetness. When it comes to pussy, I love it, but my favorite is pounding my GF with a large dildo (which she loves) and being the last to be inside of her, after she’s all loosened up. You know that old saying, ‘It’s like throwing a hotdog down a hallway’? I actually prefer that. I’m not sure why, psychologically, but it just feels great to me to be flopping around in there. So, when it comes to anal, all of those descriptions are exactly what its like. It’s open. It’s wet (with a lot of lube, of course), it’s slimy, and it’s unconstricted.”

But porn anal, most in the adult industry will gladly tell you, is a fantasy. “Girls train their assholes in order to take the kind of crazy poundings they take on film,” says Skylar Snow, an adult performer who entered the industry last year. That training and prep is different for everyone, but usually it involves acclimating anuses with fingers or toys for hours or days before a scene, and using relaxation tricks. Some take supplements to keep their BMs regular, fasting, popping Imodium, and doing at least one enema in the half-day or day before a scene to minimize the risk of a fecal mishap. “The controlled environment of porn really does help,” says Joseline Kelly, who entered the industry in 2015. "Because, OK, I know I’m going to have anal with this person over here and at this time, so you just feel 100 percent ready” in a way you often can’t in real life.
Of course, it is possible that you might encounter a little poop, especially if the receiving partner hasn't had a bowel movement recently (and so, fecal matter may have moved lower in your colon) or if there's residue from a previous bowel movement. Maybe a little poop isn't a big deal to you or your partner — that's great! But if it is, you can take steps to make sure there's no fecal residue left before you get started. "Most people don't regularly have much residue in their rectum, but when they do, the issue can be rectified (pun intended) by anal douching or washing prior to anal sex," Pitagora says.

You might also want to manage expectations with your partner upfront. "You can say, 'Look, I want to try this with you, but if I don’t like it then I want us to be okay with this being a one-time thing,'" Levkoff says. "It's important to own that up front. If someone says, 'Well if I really like it then I’m going to want to do it more,' then that’s an obvious sign this may not be a relationship you want to be in."
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!!

A male citizen taking the passive (or receptive) role in anal intercourse (paedicatio in Latin) was condemned in Rome as an act of impudicitia (immodesty or unchastity); free men, however, frequently took the active role with a young male slave, known as a catamite or puer delicatus. The latter was allowed because anal intercourse was considered equivalent to vaginal intercourse in this way; men were said to "take it like a woman" (muliebria pati, "to undergo womanly things") when they were anally penetrated, but when a man performed anal sex on a woman, she was thought of as playing the boy's role.[115] Likewise, women were believed to only be capable of anal sex or other sex acts with women if they possessed an exceptionally large clitoris or a dildo.[115] The passive partner in any of these cases was always considered a woman or a boy because being the one who penetrates was characterized as the only appropriate way for an adult male citizen to engage in sexual activity, and he was therefore considered unmanly if he was the one who was penetrated; slaves could be considered "non-citizen".[115] Although Roman men often availed themselves of their own slaves or others for anal intercourse, Roman comedies and plays presented Greek settings and characters for explicit acts of anal intercourse, and this may be indicative that the Romans thought of anal sex as something specifically "Greek".[116]
Start With A Lubed Finger – If you read the Anal Sex Preparation Guide here, you’ll know that it’s best to try penetrating yourself ALONE first with a finger covered in lube so that you get to see how your sphincter reacts to it. If you’ve already done this a few times and have a good idea of how long it takes to relax around your finger, then you can get your man to do the honors this time. If you haven’t done it by yourself yet, then I recommend that you try it alone first while following these instructions.
Oil Based Lube – Oil based lube feels a little smoother and silkier than water-based lube. It also lasts for ages, so it’s perfect for anal sex, but there are some significant drawbacks. It’s much harder to wash out of linens. More importantly, oil-based lube degrades latex condoms making them tear and rip. Bottom line, if you don’t want the condom to tear during the act, then don’t use an oil-based lube.
The human papillomavirus (HPV)  is a sexually transmitted disease that causes anal warts. They grow inside and around your anus and may spread to your genitals. Itching is a common symptom. If you think you have anal warts, see your doctor. Without treatment, they can grow large and more may show up. Untreated warts can make you more likely to get anal cancer, too.
How do you treat an external hemorrhoid? An external hemorrhoid is a hemorrhoid that occurs outside of the body in the veins around the anus. Caused by excess straining while passing stool, lifting heavy weights, and pregnancy, symptoms include bleeding, cracking, and itching. Treatments include warm baths, OTC medications, and surgery. Learn more here. Read now
In a male receptive partner, being anally penetrated can produce a pleasurable sensation due to the inserted penis rubbing or brushing against the prostate through the anal wall.[4][11] This can result in pleasurable sensations and can lead to an orgasm in some cases.[4][11] Prostate stimulation can produce a deeper orgasm, sometimes described by men as more widespread and intense, longer-lasting, and allowing for greater feelings of ecstasy than orgasm elicited by penile stimulation only.[4][11] The prostate is located next to the rectum and is the larger, more developed male homologue (variation) to the female Skene's glands.[22] It is also typical for a man to not reach orgasm as a receptive partner solely from anal sex.[23][24]
Since STDs can still be spread through both anal and oral sex, it is a good idea to use physical protection such as a condom to protect both yourself and your partner. Since the skin of the anus and rectum is thin, prone to tears, and not well lubricated, it may also be a good idea to use a water-based lubricant to protect these delicate regions from tissue damage. A lubricant cannot, however, completely prevent tearing or injury. With oral sex, no lubricant is suggested because most brands are not safe to ingest.
"You want to use a condom, whether it’s actually on a human body or a strap on or another enhancement," Levkoff says. "Some people have more than one partner, and sometimes they use the same toy on different people. So you always want to play it safe, and obviously make sure your toys are washed as well. Not everyone gets tested and you want to do the smart thing here."
Christian texts may sometimes euphemistically refer to anal sex as the peccatum contra naturam (the sin against nature, after Thomas Aquinas) or Sodomitica luxuria (sodomitical lusts, in one of Charlemagne's ordinances), or peccatum illud horribile, inter christianos non nominandum (that horrible sin that among Christians is not to be named).[130][131][132]
From Behind – Once you are comfortable with your man having more control and doing all the thrusting, then you may want to try out some doggystyle type positions, where your man is fucking you from behind. I’ve put together an entirely separate guide on the 19 best anal sex positions here where you are in the doggystyle position or a variation of it.
2. Try out anal play first. Before embarking on the full monte of penetrative, anal sex, you can—and should!—give lighter anal play a try. This is open to interpretation, and could mean anything from toys to fingers or mouths. It'll give you a lower-pressure idea of what the ~sensations~ of anal stimulation feel like, and is a way of working up to the big show. Or not! If you decide some light anal play is all you're interested in, camp out there forever. No rules here, except to use lube, have consent, and USE LUBE.
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