For both married couples and singles, sex dolls are quickly becoming a must-have item. This progression can be attributed to several variables, the most urgent of which is psychological. A man's or woman's brain is hardwired to admire the human form. It's why, even when surrounded by a girlfriend or wife, most men will turn to gaze at an attractive lady. It's also why you'll find yourself staring at a sexy-dressed female mannequin. Women who are drawn to the male body and can't help but appreciate a muscular sculpture are in the same boat.