Rule 34 Dev - 1boy 2008 abs agroalba anatomically_correct anatomically_correct_penis animal_genitalia animal_penis anthro balls biceps big_balls big_penis biped black_balls black_border black_fur black_penis border digital_media_(artwork) equine equine_penis erection eyebrows fur grey_background hooves horse horseballs horsecock huge_balls huge_cock hyper hyper_balls lying male male_only mammal mane medial_ring multicolored_fur muscular muscular_male nipple_piercing nipples nude on_back pecs penis piercing pink_nipples red_eyebrows red_fur red_mane red_sclera red_stripes red_tail rekhit signature simple_background snout solo striped_fur stripes two_tone_fur|2998004264