Jerry Jones' Son Stephen -- Hey Ladies, Let's Party ... On My Dallas Cowboys Bus!!

The Dallas Cowboys finally played like champs last night -- not on a football field, but on the Sunset Strip ... where Jerry Jones' son parked a giant team bus outside a nightclub and proceeded to pull a bunch of hot chicks.

None of the Cowboys players were there, but Stephen Jones -- Jerry's son and the team's Director of Player Personnel -- led what appeared to be a group of team staffers into Bootsy Bellows nightclub. Training camp is about 90 minutes north of L.A. ... so looks like they were taking a party break.

Stephen didn't have anything to say about the big Cowboys news yesterday -- an alleged extortion plot involving pics of his father with two women.

But the best part of this clip ... is the scene ON the bus after they leave the club. The Cowboys staff is holding court with a bevy of club chicks ... the shades come down, and then the bus pulls out.

By the way, they did have a guide -- FOX Sports' Jay Glazer, who definitely knows his way around Hollywood hot spots (we see him out a lot in the off-season).

How 'bout dem Cowboys!