Rule 34 Dev - balls close-up crotch_shot erection foreskin genitals hair humanoid_genitalia humanoid_penis male navel not_furry orange_hair penis pink_body pink_penis pink_skin presenting pubes retracted_foreskin short_hair solo spread_legs spreading thick_penis vein anakuro ambiguous_species 2013 digital_media_(artwork) sketch|3729106080