Rule 34 Dev - 5_fingers abs animal_genitalia animal_penis anthro balls barbell big_balls big_muscles big_penis black_balls black_nipples bodily_fluids body_hair brown_body brown_fur chest_hair equine_genitalia equine_penis erection exercise eyes_closed fingers fur genitals hair huge_penis male medial_ring mottled mottled_genitalia mottled_penis muscular muscular_anthro muscular_male nipples nude nude_workout pecs penis quads red_hair simple_background solo standing sweat vein veiny_muscles veiny_penis weightlifting white_background workout uken_l alvintanubis xavier_(alvintanubis) equid equine horse mammal 2019|9673462365