Rule 34 Dev - 2boys against_wall anal anal_sex blush bottomless class_3-z dual_persona gakuran gay gintama gintoki_sakata japanese_text leg_grab leg_up male male_only necktie official_alternate_costume oniku_(pixiv) pants_down restricted_palette school_uniform selfcest sweat teacher teacher_and_student wristwatch yaoi|9521965928