Rule 34 Dev - arched_back blush erect_nipples eyes_rolling_back gintama gintoki_sakata gtk4_r4 head_back implied_sex japanese_clothes kimono looking_pleasured male male_only monochrome muscular muscular_male nipples no_visible_genitalia on_back open_clothes open_kimono pecs profile sheet_grab solo sweat tears|13792121544