Robotic butts anyone? Here's one that is so real that it responds to everything you'd like to do a butt. Check out a video of it after the jump.

"Shiri" is the name of the robotic buttocks you see here, and it was designed to not only receive stimulation but respond to that stimulation by tensing, twitching and protruding artificial muscles in expressions of emotion.

[Popular Science via It's Okay to be Smart]