Sex and science fiction have not always been the most obvious partners; combining the two has occasionally defeated even the genre's greatest luminaries. But here are ten authors who successfully brought sex into the future.

In this scene from the movie Decoys 2, an evil alien transforms into a sassy dominatrix so she can mate with a young guy. It's just one of the most embarrassing alien mating scenes ever.

Why do so many summer movie trailers feature boy-on-boy bondage? Like this Terminator Salvation goodness. We've pulled the best homoerotic bondagey moments, from this summer's biggest movie trailers.

Maybe it's true that love knows no bounds. And when we're exploring space and discovering new alien life-forms, it just makes sense that we're going to have their babies. Here's our nine favorite half-human hybrids.

A group of Amazonian ants have evolved an extremely unusual social system: They are all female and reproduce via cloning. Though their sexual organs have virtually disappeared, they have also gained some extraordinary abilities.

What exactly is Khan Noonien Singh doing in Hustler's new Star Trek porn movie? And what role does Sasha Grey play? We talked to screenwriter Roger Krypton. Plus an exclusive work-safe clip and pics.

Since science fiction was invented, the real world has followed in its footsteps, whether it's language or replicating fictional moral dilemmas. But there's one area where the real world is sadly lacking: science-fictional sextoys.

Scientists can measure atoms and they can measure the distance from our sun to the edges of the universe. So of course they also have instruments that can determine precisely how sexually aroused you are.

In honor of spring fever, we decided to pay tribute to those that try to create love, either chemically or magically. Too bad forcing desire always leads to disaster. Here are our favorite love-potion calamities.

Pin-up artist Andrew Bawidamann is best known for his military art, showing bodacious women in uniforms and on the battlefields. But he also does amazing space pin-ups, and here are a few of our favorites.