Rule 34 Dev - 2boys anal anal_sex blackmail bottomless cigarette class_3-z comic from_behind gakuran gintama gintoki_sakata grin hijikata_toshiro implied_anal male male_only marrbl monochrome official_alternate_costume phone photo_(object) school_uniform schoolboy smile smoking takasugi_shinsuke teacher_and_student textless yaoi|8120689136