The hum of the bus engine and the sway of the vehicle set the rhythm for this unexpected encounter. Katty, with her heart pounding, tentatively reaches out, feeling the stranger's throbbing member through his jeans. He responds by unzipping and revealing his stiff, pulsating cock. With a mix of excitement and caution, Katty wraps her fingers around it, giving him a slow, steady handjob. The stranger's hips buck slightly, his pleasure mounting as they both steal glances around, aware of the risk yet unable to stop their carnal dance in the middle of the day.