Two strangers, a redhead and a brunette, find themselves alone in a crowded metro car. As the train jerks and sways, they're pressed against each other, their bodies touching intimately. The redhead feels a spark, her heart racing as she looks into the brunette's eyes. She tentatively reaches out, tracing the other woman's curves through her clothes. The brunette responds, her breath hitching as she grinds against the redhead. Lost in their own world, they explore each other's bodies, fingers tracing lines of pleasure, until the train pulls into their stop, forcing them to separate, breathless and yearning.