On a bustling bus, two straights-for-pay meet, their eyes lingering on each other's crotches. The twink, with a greedy glint, offers cash for a fuck. The jock, tempted by the easy money, agrees. They find a secluded spot, the twink's hand already on the jock's growing bulge. The jock turns the twink around, pushing him against the window as he spits on his hand and lubes up his cock. He thrusts in, fucking the twink hard and fast, the twink's moans barely audible over the bus's rumble.