According to Hollywood Life, the Perfect Couples actress encouraged one-night sexual encounters when she took the stage at Pure in Las Vegas.
"Who is going to have a random hookup tonight?" Munn asked the crowd.
The New York Daily News reports that the star also had a verbal altercation with a group in the club, cuminating in her telling them to "go f**k yourselves".
The 30-year-old then allegedly added that her "career will go on", but that the members of the group were "going to have to kiss people's asses for the rest of [their] lives".
Munn has previously stated that sex is a priority for her in a relationship.
The actress recently revealed that Perfect Couples has not been cancelled, despite the news that co-stars Kyle Bornheimer and David Walton have signed onto new pilots.