Drop the Euphemisms.

We really love our euphemisms-- euphemisms for our naughty bits, and euphemisms for doing the naughty, which, like this sentence starts to get a little tangled and weird when we examine the things we say in order to not just say the actual thing. Durex is encouraging people to just say masturbate and to stop being so weird about it all. Masturbate is just a word, and everyone does it.