Note to big boss guys: If you're going to hook up with underlings at the company Christmas party, try to avoid leaving photographic evidence.
That goes for you Russel "It's-Better-With-Butter" Simmons, Yelp's co-founder, chief technology officer, and hottie in charge.
An anonymous tipster submitted photos that seem to capture Simmons getting semi-freaky with a company employee in a photo booth.
To see the full seduction, follow the jump.
Maybe Simmons' new Audi helped seal the deal . . .