In Ancient India :: young women inserted two circled stoned into vagina to train their vaginal muscles. In Japan - two vaginal beads from metal of ivory. Women should hold these vaginal beads in vagina, and do not let them drop out. This muscle game considered to be a special art in India. Japan geishas kept this skill for enthusiastic fiances and for special receptions. Improved, modern exercises for vaginal muscles were brought to France in 18 century from Far East. Frenchmen gave the name to these toys – pommes d'amour (love apples). They used these vaginal beads in courts. Today some vaginal beads are supplied with vibrating device. Women with enough trained vaginal muscled are recommended to use small heavy metal beads with smooth surface. Before and after using, vaginal beads are washed with hot water.
Prolonging lubes are :: special creams, sprays or lubricants. Their destination is to prolong sex in cases of premature ejaculation. Usually, the composition of such lubes consists of anesthetic (lidocaine, benzocaine and other elements) that benumbs the nerve-endings. As a result, the sensory acuity reduces and the moment of male orgasm is postponed. Sometimes menthol is used as an additional component in prolonging lubes. Lubricate sensible regions of your penis with prolonging lube before sex (10-15 minutes).You may repeat the lubrication straight before sex as necessary. All these preparations don't influence on potency.
The other :: also well-known variant is penis rings. They are designed for men with insufficient or fast-falling erection. The ring is put on the penis at the moment of maximum erection. The penis keeps its firmness and flexibility due to thick grasp and prevention of blood outflow. Usually such kinds of erection keepers are made of latex or silicon. Can be in the form of loop. You need to begin the selection of such ring from the biggest size – rings shouldn't be thicker than it's necessary for penis firmness. Don't wear the rings longer than 30 minutes. If you like to use it longer, you need to make small pauses to restore normal blood circulation.