Black bikini bottoms barely covering her thick ass when he pulls them aside midday. Sand between her thighs, no panties left to hide it. She straddles him on the towel like they’re still teenagers sneaking this—one hand braced on his shoulder, the other tangled in his hair as he sucks hard enough to leave marks. Beach grass scratching their backs, but neither cares. When she grinds down too fast and gasps, you hear it: ‘Don’t stop… someone might see.’