Mid-coitus, regardless of position, firmly grasp your partner's scrotum (making sure both testicles are included) and twist counter-clockwise if right-handed (clockwise if left-handed). It is very important that you do not let go until the erection has fully diminished. DO NOT let go if your partner begins to scream--it is merely an expression of ecstasy.
Last night, I gave my boyfriend the best Chinese Medicine Ball Twist; he was screaming for hours!
by Dominatrices May 08, 2009