In the grimy, dimly lit garage, the mechanic, bent over the car hood, feels a heavy presence behind him. His boss, a rugged man with a thick tool belt, looms, his eyes fixed on the mechanic's round, grease-stained ass. The boss unbuckles his belt, revealing his thick, veined cock. He spits on it, rubbing the saliva in as the mechanic, nervous but excited, spreads his legs wider. The boss grips his hips, pushing his cockhead against the mechanic's tight, resisting hole. With a grunt, he thrusts in, filling the mechanic's ass with his hard, throbbing meat.