10. Avocados

The Aztecs called these heart-healthy items fruit of the "testicle tree." Don't think too hard about that. Think instead about the Vitamin E contained in each one, which can boost your state of arousal and the intensity of your orgasm. Cut in half, the fruit insinuates sex, a nod to both organs. And then there's that outer protective layer that you don't really need and a very pleasing sensation to the mouth when you peel it away to get at the flesh beneath. We might be talking about blowjobs. Who can say, really?