How do you make a gorgeous woman sexier? Give her a big brain. Sure, a pretty face and a tight body have their charms, but smart girls win out every time.

There's the unfortunate idea that women are more attractive if they play dumb, and that men are intimidated by smarts, but we're here to say that's bunk. It's a challenging world out there, and there's no time to play the bimbo. Impress us with your erudition, poke holes in our arguments, and show us your wits.

To show our appreciation, we've collected the best of the brainy. Some are Ivy League actresses, others are surprisingly sharp porn stars, women with record-setting IQs, and sexy real-life scientists. Marvel at their accomplishments and embrace your new-found feelings of intellectual inadequacy.