Sex is her drug

It's nice to see rehab hasn't dulled Lindsay Lohan's sex drive.

The Star reports that since Lindsay has checked into Promises she's been dipping into both the patient and staff pools for companionship.

Regarding the fellow patient, "Lindsay sparkles when she's near him," an insider tells Star. "They're glued at the hip. They take smoke breaks together, eat together – they both love Japanese food and Promises has a five-star chef. They also go for walks together and take coffee breaks together after meetings."

And when they went swimming together, Lindsay's bikini top magically fell off.

Whoops.

Even though Promises' policies prohibit entertaining guests of the opposite sex in the rooms, Lindsay has her own rules.

About midnight on June 17, the Star says Lindsay was caught canoodling with the hunky patient – wearing nothing underneath a skimpy nightie.

Whoops again.

The Star reports that Lindsay also has the hots for her fitness trainer, Matt Searle.

"Lindsay has been working out with Matt [nearly every day] and has become very friendly with him, even calling him on the days she doesn't work out," says a close "friend."

"For the first time ever, she looks forward to going to the gym."

Just what the world needs, Lindsay Lohan with more stamina.

Tattbits

* Tom Sizemore's 16-month prison sentence for violating probation in a drug case was dramatically reduced Tuesday.

Superior Court Judge Cynthia Rayvis gave the actor 213 days of credit for time he has already spent in jail and two live-in drug programs, leaving him with about nine months in state prison.

He'll likely serve only about 4 1/2 months of that.

Not that we want to see Tom in jail, but isn't he essentially getting credit for the time he spent violating the probation?

Isn't that like getting extra credit in school for the papers you didn't write?