Thick thighs pressing into the concrete, the masked brute kneels and jerks himself raw. Latex gloves slick with sweat as he strokes faster, hips jerking forward with each pump. Glassy eyes locked on nothing while his free hand claws at the pool chair beneath him. Cock glistening under the sun, he grunts loud enough for the neighbors to hear. Muscles straining, he finally spills thick ropes onto the tiles, leaving sticky prints for the next barefoot guest to find.