In a seedy, neon-lit alleyway, two strangers meet, their eyes drawn to each other's bulging crotches. They press against each other, feeling the hardness through their jeans. One man, his ass big and round, turns around and presses it against the other's crotch, rubbing slowly. The other man, unable to resist, grabs the first's ass cheeks, squeezing them hard as he grinds against him, his breath coming in short gasps.