Charlie Sheen allegedly romped with three porn stars in Las Vegas on what was described as an epic bender.

Living up to the ‘celebrity mess’ title he earned last year, the Hollywood bad boy met the two female porn stars while they were in town for an adult film convention on Monday, according to TMZ.

One of Sheen’s star companions was Bree Olson, a 23-year-old blonde with a penchant for older men, and the 2008 Best Anal Sex Scene AVN Award to her credit. The Two And a Half Men actor and his new pals had a drinking session at The Palms hotel before retiring to the star’s suite, said the gossip site.

Earlier in the day, Sheen, 45, was apparently seen downing vodka shots. He was overheard complaining to bar staff that the suits behind Two And A Half Men had been urging him to go to rehab.

Warner Bros has allegedly been trying to force Sheen into straightening out his life.

Sources close to the troubled star have talked to him about the possibility of a stint in rehab, but Sheen is reportedly very reluctant and doesn’t believe he has a problem.

Sheen’s bender comes after claims he sacked a ‘sober coach’ who was hired after he trashed a New York hotel room last year.

“The coach has not heard from Sheen since he told him not to start in the new year,” a source told TMZ.