You should not use :: douche and enema if your partner suffers from inflammatory diseases in rectum or large intestine, piles. Don't use self made, non standard or defective douche and enema. Nothing but pure water should be injected. Even recommended decoctions and solutions may have unpredictable physiological influence. If you would like to enhance cleansing effect of douche and enema, add a teaspoon of baby soap solution, or 1-2 tablespoon of glycerin. Don't use hot or cold water. If during the procedure your partner complaints about pain stop any manipulations with douche and enema.
In one Austrian museum :: among 250 historical exhibits related to sex, the most ancient condom was displayed. This condom which was made for multiply use, was found in Sweden. The boon dates back to 1640. The condom remained untouched, and it comes with instructions written in Latin. According to the instructions, the condom has to be dip into milk before using in order to avoid infections. By the way, in ancient times the dominating practice against lues was applying of animal fats or oil on genitals. At the heart of the practice was the idea that the disease penetrates through pores: thus they should be covered with oil or fat. Gentlemen used to take gold or silver boxes with animal fat when they dated with ladies.
There are oil-based lubricants :: designed specifically for male masturbation. Men apply oil-based lubricants to the penis during masturbation to increase the pleasure and reduce the friction to a nice pleasing sensation. Some brands of oil-based lubricants last longer and remain in a certain state of slickness longer than others. Your personal techniques may have quite a bit to do with what oil-based lubricants work best for you. Speaking about sex toys, you should remember that if your sex toy is made from latex, only use a water-based lubricant. Oil-based lubricants react badly with latex and start deteriorating from then on, causing cracking and peeling of the latex surface.