In the throes of bi-curiosity, small-titted, tummy-baring lovers succumb to their urges, their inhibitions left behind at the station. A thick, throbbing cock slides into a tight, eager ass, drawing gasps and moans. A second cock finds its way into a wet, willing mouth, gagging and slurping. The room fills with the sounds of rimming, slapping, and the squelch of toys pushing in and out of tight holes. The bisexual love express hurtles on, carrying its passengers ever deeper into the realm of taboo pleasure.