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Anus is a sensual erogenous zone. It has a direct link to the nervous system, which sends the feeling of sexual pleasure to the brain and makes the body react. Sexual excitement makes the palms red, makes the nose wings move, wets the vagina, and makes the anal muscles contract in a rhythmic way. Even if the clitoris and vagina aren't stimulated during anal coitus, the voluptuous manipulations of the anal area still make them feel good.
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There is a wide range of anal sex toys. All of these devices are just as good for men as they are for women. There are toys that can be used to play by yourself or with a partner. Anal sex toys are easy to spot because they have a wide base or a handle with a cross-cut valve. This is done so that parts of the device or the whole thing don't get into anus by accident. The point is that our bowels are very long, and the rectum is not straight at all, but has some curves in the sacral bone and perineum. So, it's easy for things to fall inside.
If this happens, see your doctor right away and tell him or her the truth about your "loss," whether you want to or not. The doctor will never look at a mean patient with suspicion or surprise. He or she knows that things like that happen, and even more often than we think. Surgeons remove thick rubber dildos, spray cans, Coca-Cola and champagne bottles, radio valves, candles, newspapers, ping-pong balls, spade handles, table legs, and vacuum attachments from the bowels of their patients. Doctors say that there is no limit to how refined sex can be.
There are new "anal sex toys" for couples who are not gay or lesbian: Today, the woman can pierce her partner's anus herself, or the man can use special anal stimulators that attach to the penis to also stimulate his woman's anus during vaginal coitus. While his flesh and blood phallus actively penetrates her vagina, the woman's anus is simultaneously stimulated by thin anal toy. People in Asia came up with this kind of "rod" a few hundred years ago. It was held together with a ring and a piece of lace. The same shape, but made of softer material, is still used today. The electric anal vibrator fixing is a modern IT superinvention.
As to the fears that the anus is too thin for penetration, look into your lavatory pan after evacuation: everything you'll see there can fit back in almost same volume. Also, erotic analogue games shouldn't have to end in coitus. Anus stimulation with the tongue or fingers will also make your partner very happy.