2 chicks at the same time brawling on the beach - who ya got?

Drastic
Some chick goes up to two other girls and disrupts their sunbathing time. Luckily, the camera just happened to be pointing at the right spot when the girl laying down got up and we got a good shot of her cheeks, I mean, suntan. Either way, these chicks are pounding sand as their meat-flaps get dusted and does anyone even know why they're fighting? What happened before the camera rolled?