Rule 34 Dev - 1boy abs animal_genitalia animal_penis anthro biceps blush equid equine equine_penis erection genitals hi_res looking_back male male_focus male_only male_solo mammal muscular muscular_anthro muscular_male muscular_thighs nipples penis rizzyofen smile smirk smug solo solo_male vein veiny_penis zebra|5501273056