HA! Watch how Cuddy proves to Wilson that she's dating House in this clip. It's courtesy of that show's second seventh season episode.
House tells the team he's dating Cuddy in this clip, in the only way he knows how: "I'm seeing Cuddy... generally without any clothes on."

House Season 7 Episode 2 Quotes

Taub: And what's with the death's head cane?
House: They didn't have a death's ass cane in my size.

So... Junior Miss Everything. Skateboarder, basketballer, science clubber, seal clubber... I'm actually guessing with that last one.