The human anus (from Latin anus meaning "ring", "circle")[1][2] is the external opening of the rectum. Two sphincters control the exit of feces from the body during an act of defecation, which is the primary function of the anus. These are the internal anal sphincter and the external anal sphincter, which are circular muscles that normally maintain constriction of the orifice and which relaxes as required by normal physiological functioning. The inner sphincter is involuntary and the outer is voluntary. It is located behind the perineum which is located behind the vagina in females and behind the scrotum in males.
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]
Anal cancer forms when a genetic mutation turns normal, healthy cells into abnormal cells. Healthy cells grow and multiply at a set rate, eventually dying at a set time. Abnormal cells grow and multiply out of control, and they don't die. The accumulating abnormal cells form a mass (tumor). Cancer cells invade nearby tissues and can separate from an initial tumor to spread elsewhere in the body (metastasize).
Me and my husband like having sex like daily using techniques i learned from sean but anal sex sometimes we wait a few days or weeks in between sometines not however when its been awhile it does hurt for like 10 seconds when he does penetrate sometimes he does use his fingers when I give him a blow job other tines he just gently penetrates but we never use lube or condoms i hate the feeling of condoms but What can I do to make it less painful that first 10 seconds and to make me actually orgams like a OMG orgams because from anal I never received a mind blowing orgasms

^ Bryan Strong; Christine DeVault; Theodore F. Cohen (2010). The Marriage and Family Experience: Intimate Relationship in a Changing Society. Cengage Learning. p. 186. ISBN 0-534-62425-1. Retrieved October 8, 2011. Most people agree that we maintain virginity as long as we refrain from sexual (vaginal) intercourse. But occasionally we hear people speak of 'technical virginity' [...] Data indicate that 'a very significant proportion of teens ha[ve] had experience with oral sex, even if they haven't had sexual intercourse, and may think of themselves as virgins' [...] Other research, especially research looking into virginity loss, reports that 35% of virgins, defined as people who have never engaged in vaginal intercourse, have nonetheless engaged in one or more other forms of heterosexual sexual activity (e.g., oral sex, anal sex, or mutual masturbation).

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]


CT scan (CAT scan): A procedure that makes a series of detailed pictures of areas inside the body, such as the abdomen or chest, taken from different angles. The pictures are made by a computer linked to an x-ray machine. A dye may be injected into a vein or swallowed to help the organs or tissues show up more clearly. This procedure is also called computed tomography, computerized tomography, or computerized axial tomography. For anal cancer, a CT scan of the pelvis and abdomen may be done.
The development of the anus was an important stage in the evolution of multicellular animals. It appears to have happened at least twice, following different paths in protostomes and deuterostomes. This accompanied or facilitated other important evolutionary developments: the bilaterian body plan, the coelom, and metamerism, in which the body was built of repeated "modules" which could later specialize, such as the heads of most arthropods, which are composed of fused, specialized segments.
So definitely don't shame yourself, your partners, or other people for wanting to try anal or enjoying it. "There’s actually very little fecal matter in that area of the rectum and the cleanup is similar to vaginal sex," she says. "The problem is a lot of people have bad experiences when they've tried anal play, because they don't know what they're doing, so that turns them off from it. Lots of people will be surprised at how much they enjoy it if they just did it right."
SheDoesAnal.com is THE brand new anal sex website! Our girls range from amateur teenage whores to top listed pornstars and you know they all love a good ass stretchin'. These slutty gals like nothing more than having their tight assholes fucked hard and then creamed like their little hole's a freshly baked chocolate eclair that needs filling. In other words, rough anal sex is what you can expect here!
2a : of, relating to, or characterized by the stage of psychosexual development in psychoanalytic theory that follows the oral stage and during which a child derives libidinal gratification from the expulsion and retention of the feces and conflict arises from parental demands regarding toilet training During the anal stage, from about 18 months to 3 years, the sphincter muscles become sensitive and controllable and bowel and bladder retention and elimination become a source of gratification.— David G. Myers, Psychology, 2001
I personally have just started experimenting with anal sex and from my experience, it sounds worse of a painful experience than it really is. My misconception about it, that I think a lot of other girls have too, is that the initial pain of… insertion… lasts through the entire insertion process, or in more blunt terms, that the pain you feel when a guy first inserts his penis “head” in lasts throughout the entire time he continues to push inward. This was not the case at all, for me at least. I’m not sure if that is what the term “rimming” is, but once my partner and I got past that initial step (which did take some practice and patience, as described in the article), it was smooth sailing.
Contrary to popular belief, guys aren’t the only ones who are ass-obsessed. Look, like we said before: there are a lot of nerve endings back there. It feels good; that’s just biology. Sure, your anus is tighter than your vagina, which is going to blow your man’s mind. But anal sex is also an extremely intimate act that can actually bring you and your partner closer together. You’re not going to let just anyone go there, and he knows it. That’s hot.
9. “Dating a girl who loves anal and we do it almost always. Lube is necessary for it to be comfortable on her end and relax. She can cum from anal penetration alone, so I do it when I want her to cum.How it feels. Very tight at the point of entry, then very warm and soft around. I personally really enjoy the feeling of it. Being tighter for me, it basically jerks off my dick as a I fuck her in the ass, causing me to cum usually pretty quickly also. We tend to do so missionary with one leg over my shoulder. It feels great to us, we both cum super fast once we start that, and simultaneously finishing at the same time your partner does is such a good feeling. I also freely just cum inside there too.In my opinion, anal is great.”
Although people tend to think that having an orgasm is the goal of sex, you can get lots of pleasure from doing sexual things even if you don’t have an orgasm. In fact, putting a lot of pressure on having an orgasm can make you or your partner anxious, which can make sex stressful and less enjoyable. Relax, and remember that pleasure, not orgasms, is the goal.

PET scan (positron emission tomography scan): A procedure to find malignant tumor cells in the body. A small amount of radioactive glucose (sugar) is injected into a vein. The PET scanner rotates around the body and makes a picture of where glucose is being used in the body. Malignant tumor cells show up brighter in the picture because they are more active and take up more glucose than normal cells do.
Their purpose is to provide information on diseases and processes, rather than dictate a specific form of treatment. They are intended for the use of all practitioners, health care workers and patients who desire information about the management of the conditions addressed. It should be recognized that these brochures should not be deemed inclusive of all proper methods of care or exclusive of methods of care reasonably directed to obtain the same results. The ultimate judgment regarding the propriety of any specific procedure must be made by the physician in light of all the circumstances presented by the individual patient. 
It can be scary when you're trying something new, especially when it involves a body part you're not use to anyone touching. But try to relax as much as possible, because it will make anal sex better, Pitagora says. "Anoreceptive sex is enhanced by an openness to the experience, trust of the insertive partner, an associated sense of arousal, and the ability to overcome the stereotypical taboo," they once wrote in a paper. Bottom line, do whatever it takes to feel as comfortable as possible, because when you're relaxed you'll enjoy the experience more.
2a : of, relating to, or characterized by the stage of psychosexual development in psychoanalytic theory that follows the oral stage and during which a child derives libidinal gratification from the expulsion and retention of the feces and conflict arises from parental demands regarding toilet training During the anal stage, from about 18 months to 3 years, the sphincter muscles become sensitive and controllable and bowel and bladder retention and elimination become a source of gratification.— David G. Myers, Psychology, 2001

12. You're going to freak the fuck out that you're pooping but you're not. Honestly, it becomes hard to tell if you are or aren't; additionally, this Tucker Max story was not helpful for my butt sex-phobia. You're probably not gonna poop. If there's a little bit of poop, as my partner said, it's not a big deal, because "[he] asked for this." (There wasn't.)
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