Saved by a knight in shining armor

"Are these boys bothering you?"

Lisa snapped to her senses at the voice. It was unequivocally male, but where the frat bros were arrogant and obnoxious, it was confident and strong.

Lisa turned to see a police officer striding toward them down the beach. His eyes were covered by dark sunglasses, making it difficult to tell his age, but he sported a thick mustache. Lisa had to fight the urge to giggle... did people still really wear mustaches unironically?

"Come on, officer, don't be a douche" Bro B said. "We're just trying to get our dicks wet. No law against that, right? And I mean, there's four of them... I guess we could spare ONE for you. Just look at them!"

The officer shook his head slowly. "You boys have got a lot learn about respecting women" he said. The crowd of bros murmured disapproval at this insult to their virility.

An idea occurred to Lisa: what if she flirted with Officer Friendly here? She would normally never throw herself at a man, especially in public, but what better way to piss out the Bros than by fraternizing with their natural enemy?