Sex sells. We all know that. However, at the hands of some of the best advertising agency in the world, the whole idea is taken to new heights. Take, for example, Neogama's work to celebrate Playboy Brasil's 31st birthday. Another terrific advertisements for condoms, lotion, and wonder bra also make the cut over at Demilked (where 20 ads are compiled). We're also partial to the humorous and saucy advertisements developed for New York's Museum of Sex.