Scientists have finally got a grip on our deepest sexual desires - by looking at what people type into Google.
They have examined one billion online sex-related searches from around the world to find out what users click on when no one else is looking.
The findings have been published in a book called A Billion Wicked Thoughts, co-authored by Ogi Ogas and Sai Gaddam. The pair hope it will prove there is no such thing as sexual deviance as almost nothing is seen as out of bounds.
The survey is so vast it is viewed by many experts as the most complete analysis of human sexual desires.
Among the findings are the fact straight men prefer heavier women to thinner ones and find feet erotic.
They also enjoy a wide variety of erotic images, including bizarrely both elderly women and transsexuals.
Meanwhile straight women enjoy reading about and watching romances between two men, but only when the focus is on emotion and not sex.
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