Watch “The experiment begins with the explanation, “In order to obtain accurate results, please try not to hold back your voice, urination, or orgasm.” Eventually, the vagina becomes numb and paralyzed, and the sense of stopping urination is lost… A record of individual fixed electric vibrators on six female SOD employees, including two researchers from the SOD Sex Science Lab, “through clothing, direct contact with the genitals, direct contact with the genitals in irregular positions,” and then simultaneous experiments on all six of them.” [SDMM-197] at javtsunami.com. JAV Full — New videos updated daily!

The third installment of the series is here due to popular demand! Two super sexy teachers give sex education to naive but curious teenage girls! The girls were shy at first, but in this lewd situation they hold their crotches and fidget. They are surprised by the erect penis, but can’t take their eyes off it, so they experience the cowgirl position!