The bus rumbles to life, its engine a dull roar that masks the wet sounds of sucking and fucking. The men, a mix of young and old, lean into each other, their bodies pressed close. Fingers, slick with spit or lube, push into tight assholes, eliciting gasps and moans. A few brave souls pull out toys, stuffing them into their asses as they jerk off, their faces contorted in pleasure and shame. The bus halts suddenly, and the men scramble to cover up, their faces flushed and bodies glistening with sweat and cum.