In Stallion Erection we see a beautiful horse in his barn. He starts off the movie flaccid. But as the movie progresses, we see that the blood is flowing and eventually the magnificant stallion becomes erect. His masterful penis is at least a foot long when completely erect. Once he is fully hard, we see him slap his erect penis on the underside of his stomach. This is actually how horses masturbate! He continues to slap his stomach or 'jack off' for most of the video. So sit back and enjoy as this stallion gets hard and masturbates right in front of your eyes.