THE KARDASHIAN MEN :French, Tyga, & Scott SHARE A COMMON INTEREST

French Montana, Tyga and Scott Disick found some common bonding ground ... at a lingerie party in Hollywood.

The boys were there alongside Chris Brown, Snoop, Sean Kingston and Matt Barnes. VH1 "Love & Hip Hop: Hollywood" star Sincere Show served as hostess for the Facet Studio Black Tie Lingerie Party ... which required men to dress up and the ladies to dress ... with not much at all.

Scott's presence was a little surprising ... he just became a third-time dad this week.

But hey, who could turn down this invite?