Little bit of Info
Anal sex is not only for homosexual males. A lot of straight couples indulge in anal sex. And I don't mean that the guy is always giving. Some couples have a wide range of toys including Dildos, and strap-ons. Strap-ons give experimenting couples the chance to switch roles. Assuming that you've read the section on the reproductive system, you would then know that males have a more sensitive system to anal sex. You and your partner can experiment for the first time or learn more about how to enjoy anal sex. It can be very enjoyable, but if you're not careful or patient, it can also be painful. If you and you partner have decided to have anal sex, make sure to prepare, and as with all other forms of sex, you want to be careful about protection.
Anal sex is the biggest risk for STDs (sexually transmitted diseases). The anus is not designed for a hard elongated penis, and the trauma that occurs leaves blood vessels open, which is why majority of cases of HIV-AIDS are male homosexuals. This is not to say that you shouldn't explore this form of sex, you just need to be extra careful.
Regular condoms just don't work as well with anal sex. The typical male condom is about seven hundredths of a millimeter thick, which is much too thin to resist the friction of anal rubbing. There are thicker condoms out there for homosexuals to use for anal sex, but for some, the feeling is just not the same. There are two ways to be sure and that's to ether don't do it or to really know your partner. Even if you do know you partner, there are a few hygiene concerns that most couples have when they're "going anal" for the first time. They all worry about sh*t.
Just like women douche to clean themselves from within, there are similar products for the anus. Enema is a produce that involves a clyster or injection, a liquid injected or to be injected into the rectum. Plain water, when only one or two injections are required, is usually perfectly acceptable. However, never forget that the standard of purity of the water is much higher than that required for drinking. If there is concern about electrolyte imbalance adding one level teaspoon of table salt or baking soda per quart of water is a good idea. Also, the more exotic enema liquids are not without high risk. The injection of any substance via rectum bypasses the body's defense systems and has risk. The use of any other substance than plain water, or isotonic water is questionable.
You begin by inserting the tube or hose. Lubricate it with olive oil, Crisco, KY jelly or any other inert lubricant. A small tube or hose will usually pass easily with little lubricant. Most people have large enough buttock muscles to hide the anus, so you lift the upper buttock away. You can lift with the fingers of your non dominant hand and spread their lower cheek with your thumb. After you get a good view of the anus, gently insert the tube into the center, avoiding any hemorrhoids. The direction with most people is toward the umbilicus (belly button), but people vary, aim in and use no force. The tube will slide in with no resistance. If it doesn't, you are going in the wrong way or there is an obstruction. Change the direction, or move the tube to another spot. The internal sphincter muscle may resist, if it does very lightly hold the tube and wait for it to relax. Once the tube goes in, a standard enema tube will go in a couple of inches. It is not wise on necessary to go any deeper than that."
I'm by no means a doctor. These are pieces of information that I've gleaned from books and sites all over the web. This part on enema is from a book by Dr. J. Gleen Knox BA, DC's book, Love Thine Enema and Heal Thyself.
If you're interested in doing this, ask your doctor or read up more on the subject. For most people, however, preparation for anal sex simply involves taking a good bath with special attention to the anus. Afterwards, get a lot of lubricants to help make insertion easier.
Why men can enjoy anal sex more than women
For men, the prostate gland and back passage, when stimulated, can provide intense sensations; this technique is particularly useful when a man's virility is flagging. Making certain your finger, or fingers, are well lubricated (lack of a lubricant will be very uncomfortable), insert them approximately 2 inches (5 centimeters) into the rectum. To stimulate the prostate gland, press against the front wall of the rectum with a slight downward pressure. At the same time, apply firm pressure behind the scrotum with the heel of your hand.
The prostate gland is identified as the male "G" spot. Its physiological function is to help produce the fluid that carries sperm into the vagina during sexual intercourse. Lots of men discover that stimulation of the prostate before or during intercourse can result in an extremely intense orgasm, during which they ejaculate in a gentle stream rather than in spurts. For a man getting stimulated by the hand of his partner, he should lie down on his back and have him or her gently insert a finger into his anus. Allow enough time to become accustomed to having your partner's finger in there, then have him or her feel up the front rectal wall until she finds your prostate and massage it firmly. Then he/she can stroke the gland in a downward direction. If a guy is have a penis (artificial or real) inserted into his rectum, the best position would be for him to be on his back and the giver on top. That way he can have his "G" spot stimulated during penetration.
Remember that the anus is very delicate and unused to having things inserted into it. It is also not a naturally lubricating organ. Therefore, make sure that fingernails are short and that fingers are well lubricated so as not to cause damage. Also keep in mind what was said at the beginning of the chapter you need to keep safe. Regular condoms just don't cut it so make sure to wear the appropriate suit for this occasion.