Leave it to my brother the engineering major to find this.
Honestly, I'm surprised this didn't come along sooner: erotic video-gaming. JennyLC, a masters student working in NYU's Interactive Telecommunications Program has created the world's first "intimate controllers", which are located in a boy's boxers and a girl's bra. Personally, I think implementing game controllers into one's underwear is oddly brilliant, though a bit superfluous. If you and your date are already down to your skivvies and are copping a feel on each other, wouldn't you think that a little lovin' is pretty much guaranteed?
Hey, Jenny, can we get a video with two boys using your awesome little inventions?