rule 34 2boys akaza kimetsu no yaiba anal juice anus arms behind back barefoot big penis blue sclera blush body markings bondage clenched teeth clothed male nude male demon boy demon slayer douma erection facial markings fangs feet gay imminent anal imminent imminent sex joraffasalmon kimetsu no yaiba male male only male pov male pubic hair male urethral insertion muscular muscular male nude male partially retracted foreskin penis penis markings penis tattoo pink hair precum pubic hair restrained retracted foreskin sharp fingernails soles spread legs sweat tendrils tied penis uncensored uncut urethral insertion urethral penetration veins veiny penis yaoi yellow eyes 6366132