Rule 34 Dev - anthro balls biped boxer_briefs chair clothing computer electronics erection front_view furniture genitals hand_in_underwear humanoid_genitalia humanoid_penis inside looking_down male masturbation office office_chair penile penile_masturbation penis penis_poking_out penis_through_fly sitting smile solo spread_legs spreading underwear floorninja benton_(floorninja) aquatic_gastropod gastropod marine mollusk nudibranch sea_slug slug absurd_res digital_drawing_(artwork) digital_media_(artwork) hi_res monochrome sketch unfinished|7069181315