A recent survey in the U.K. found that 75 percent of men think about "pornographic images" while slapping the salami, while 80 percent of women think of someone they know while tending to the little man in the boat. As for the rest, 9 percent of men said they think about female celebrities, and 10 percent of women think about a current or former boyfriend. (Perhaps the rest are just thinking about their Hitachi Magic Wand...after all, sometimes it really is just about scratching an itch.)

In other words, no matter how women may lust over a newly bearded George Clooney (he even likes sex props!), it's their boss or their boyfriend's best friend who is much more likely to get the starring role in their fantasy life. Is that true for you? Are you more likely to masturbate to someone you know rather than porn or erotica--or a particular fetching photo in Us Weekly? If so, do you have any limits on who you'll "do," e.g. your boyfriend's brother = fair wank material; your boyfriend's father = off-limits? And how much of your fantasy life do you share with a partner...or do all your dirty thoughts reside on your own private fantasy island?