Here's an idea that I thought of today. You would have some star thats over 30 and been in the industry a while and is rather well known and a bunch of starlets all under 21.

The star is a bartender and starlet after starlet comes in and try to buy a drink but she won't let them. After she closes up the bar and leaves the starlets are waiting outside and gang up on her degrading her in the usual ways.