You say you know "a bunch of women", eh? Well, there's MILLIONS of women over the age of 21 in this world, yet you also say you don't know any women over the age of 21 who don't pleasure themselves. How do YOU know whether the ones you do know, masturbate or not? Is that a topic of conversation between you and those millions of women? Now obviously you don't know EVERY woman over age 21 in the world, so your comment saying you don't know any women over 21 who don't masturbate, is pointless because you don't know if they do or not, unless they make it a habit of telling you whenever they do it. :/