Well, unlike a lot of people here it would seem, I'm a bit more shameless and so NSA fun is fine with me!
I could say someone I know but nobody else here would and so it would be somewhat meaningless. In that case, it would be someone reasonably well known.
If I were to go with a game character it would be Nova (Fallout 3). Were I forced to pick someone who was actually real (or at least portrayed by a human-being) I would go with Michelle, the band geek from the American Pie movies. She's petite, red-haired, geeky and a libido that could saw down a giant Redwood - The perfect combination, in other words!
Wardy