Anyone who has watched even a few minutes of porn may end up with some very particular ideas about what real-world sex entails. Porn -- at least, the kind where super-toned, tanned, hairless women are penetrated in a variety of acrobatic positions by equally toned, tanned men -- is full of myths about sex. Redditor black_brotha decided to ask women on the site what they "learned" from porn that turned out to be completely untrue in the real world. Here are 11 of the most worrying un-truths women...