Rule 34 Dev - 1boy abs animal_genitalia animal_penis anthro ball_growth balls biceps big_balls big_penis brown_fur clothes cum cumshot equine equine_penis erection fur green_eyes growth hair horse horsecock huge_balls insertion ipotane james leaking lying male male_only male_urethral_insertion mammal medial_ring muscles nipples nude open_mouth orgasm pecs penetration penis poweron ripping solo sounding starvinartmajor story straining teeth tongue transformation underwear urethral urethral_insertion urethral_penetration werehorse|2003706128