Britney Spears locked the mansion she shared with Fed-Ex, put it on the market and then hit Vegas to party. No one knows until now whether meeting Paris Hilton was in the plan, but the two blondes hooked up and partied the night away.

The two made a very splashing public appearance at Tryst Nightclub in the Wynn Hotel, where anyone could see them laughing happily, feelin' good and chain-smoking. At one point, Britney even got so carried away and was so into the spirit of Paris, that she took off her pants and danced on the dance ring in her fishnet stockings.

That is all about the facts. Now, moving on into the rumor division, there are some who claim Mario Lopez was also in attendance and that Britney got really hot and heavy with the 'Saved By the Bell' alum. Not that anyone could blame her, of course...

Another Britney-related rumor says that the pop singer is now thinking about ways to stop her soon-to-be-ex husband from ruining her reputation with that four-hour sex tape and the best thought that crossed her mind until now is that of giving it for free. Wee! Apparently, Brit Brit will thus prevent Federline from getting any money for the raunchy film (either from her or from other interested parties) and, if her reputation is to be sullied by it, she will do that herself.

Could that be the reason for which she hooked up with Paris? After all, who is the one celebrity who got the most benefit from a sex tape if not Miss Hilton?