Emma, bound by her chastity device, finds unexpected pleasure while driving. She tentatively grips the gear shift, feeling its cold metal against her captive cock. As she shifts gears, the knob presses against her sensitive prostate, sending waves of pleasure through her. Precum leaks from her chastity cage, dampening her panties. She moans softly, her body tensing as she nears climax. With a final push of the gear knob, she erupts, cum filling her panties, a hands-free orgasm achieved in the driver's seat.