Rule 34 Dev - abs animal_genitalia animal_penis anthro athletic backsack balls biceps big_penis biped black_body black_fur black_hair black_nipples black_penis blue_eyes butt color_swatch dark_body dark_skin equine_genitalia equine_penis fur genitals green_background grey_body grey_fur hair half-erect hooves male mohawk muscular muscular_anthro nipples nude pecs penis pose presenting presenting_hindquarters pubes sheath simple_background solo standing tail tail_wraps vein wraps jay_malamute jamie_gardner equid equine horse mammal model_sheet|1506877225