Train on a Train

Yugi needs to test out his magic, and Ryou is the most adept mage he knows. If he can catch Ryou unaware, it'll be proof his magic is stronger.

Or, Yugi researches sex magic and uses it on unsuspecting Ryou on a train. Dead dove: do not eat.

Full tags from AO3: Gangbang, Train Sex, Chikan, CNC, Non-Consensual Touching, non-con to dub-con to con, Extremely Dubious Consent, Dubious Consent, Magic, magic sex, Portals, Sex Toys, yugi takes some risks, ryou is into it buT, very heavy on the cnc tag, Trans Bakura Ryou, Trans Male Character, AFAB Terminology, Choking, Voyeurism, Exhibitionism, Multiple Orgasms, Forced Orgasm, Rape FantasyRape/Non-con Elements, Blowjobs, Vibrators, non-consensual sex toys, Master/Pet, BDSM, Light Dom/sub, Dom/sub, sub ryou, Dom Yugi, Aftercare, Dead Dove: Do Not Eat, Facials, Public Humiliation, Public Sex, Ryou is never misgendered, because this is a fantasy, no transphobia in my porn, Plot What Plot/Porn Without Plot, PWP, security baton as a dildo, Cumdump, Bondage, Sadism, Masochism