Vibrating masturbation sleeves :: are devices that simulate actual sexual intercourse. Some models of such sex toys for men do more than just vibrate. The masturbation sleeve is a cylindrical device made of soft plastic or latex. A man can use it placing it over his genitals. The power source is usually a vibrating egg shaped device that uses 2 AA batteries. Masturbation sleeves may be smooth, ribbed or with additional nubs which increase sensitivity. Masturbation sleeves come in different lengths and widths. To maximize pleasure, use lubricants before entering the device. It is better to use lots of water based lubricant on your penis before you insert it. Oil-based lubricants might break down the material.
If used properly :: condom is very effective because it reduces the risk of being infected with HIV during sexual intercourse. Using a condom also provides protection against other diseases, which are transmitted sexually and condom is also a good protection against pregnancy. The condom should unroll smoothly and easily from the rim on the outside. If it takes more than a few seconds, it probably means that you are trying to put the condom on upside down. To take off the condom, don't try to roll it back up. Hold it near the rim and slide it off. You need to use a new condom every time you have sexual intercourse. You should never use the same condom twice. If you go from anal intercourse to vaginal intercourse, you should consider changing the condom.
Interesting :: Even in Ancient China people used different sex toys. The most famous were special penis rings. They were made of silver or ivory with nipples, hooks or crests. Such ring, put on the penis base, protected from early ejaculation and supported the erection, preventing the blood outflow. Due to small hooks or nipples woman's clitoris or anus also got the stimulation. Such penis rings were covered with fine patterns and carving, that became a kind of decorative and applied arts. Most often Chinese carvers used such traditional item: a dragon playing with pearl. Dragons' shells moved apart large vulvar lips, while the pearl stimulated the clitoris. The interlaced dragons' tails symbolized two progenitors - Fu-Si and Niui-Vi, an example of strong unity Yin Yan. In the middle of interlaced tails there was a ring with small hole. A man tided round with the strong string threaded in it, to fix the ring and to prevent from unpleasant surprises.