The most primitive "Simulation Sex Toy" sex rhythm, is the piston movement. However, if access is too fast, it is not easy to give women pleasure. Most women are very interested in the low frequency of tics, it inspires excitement and speed twitch easily driven into the orgasm of both spouses. "Simulation Sex Toy" In addition to the classic nine shallow a depth, you can also try the eight thousand two hundred deep. In this process, do not forget to join the side wall friction, that is, after in-depth, the "left-right three-three" friction, that each twitch friction around the vaginal wall three times, and then rhythmically up and down movement. This "Simulation Sex Toy" action allows the couple to get great pleasure in sex.