In the developing world, it's still often taboo for a woman to ask her partner to wear a condom, so their use remains rare. A female condom could solve that, but they've been uncomfortable, impractical, and noisy. So Mache Seibel and a team at Condax are developing a female condom with an irresistible selling point: pleasure. The Femex has a thumb pump attached to inflatable tubules that grasp the male tightly while stimulating the female's G-spot and clitoris.