Rule 34 Dev - 2boys anal_fingering anus backsack balls bishonen blonde_hair blue_eyes bodily_fluids clothed erection finger_in_mouth gintama gintoki_sakata imagining japanese_text kawa_(pixiv) male male_only masturbation motion_lines nipple_pinch nipple_tweak okita_sougo on_side penis penis_out solo_focus teen_boy teenager thumb_in_mouth yaoi|8394467984