A bunch of sisters were being naughty.

For God's sake, let them have their fun. From what I can tell, they were being discreet.

By the way, I remember going on a Thanksgiving day flight from New Orleans, which was pretty much deserted, and a group of raucous (straight) Southerners were going through the mini bar with the flight attendants.

OK, technically they're breaking the rules. But life is a party. Have fun!!!