As I type this out, I'm filled with a mixture of amusement and complete horror.
The dude at
Slashdong (while I love the name of the site, it's uh, unbelievably NSFW) is displaying his latest creation.
He's modified a fleshlight (Google it) with an attachment that goes to a micro-controller which in turns plugs into a USB port.
From his explanation on the site, once plugged in, your computer can sense when and how hard you thrust your joystick into the fleshlight.
Now, by doing this, you can control a mouse cursor with your johnson, though obviously movement is somewhat limited due to the fact that the entire system works by sensing air pressure. So the big question is...why?
Easy, one can now play a game about getting a naughty nurse to ride their analog controller...
The author of the original article mentions other ideas, like playing an FPS (first-person sex?) or triggering samples with your drum stick.
I think I'm seriously frightened now after reading the entire article, but hey, we all know hormones are one of the biggest driving forces for technology.