A third passenger enters their car, a mysterious woman with a hunger in her eyes. The redhead and brunette, now naked, welcome her with open arms. The new arrival, ravenous, dives between their legs, her tongue alternating between their dripping pussies. The redhead and brunette lean back, supporting each other, their fingers intertwined as they ride the stranger's tongue. The train's motion rocks them, adding to their pleasure, until they climax in a chorus of moans, their juices mingling on the stranger's chin.