While you found that your penis's were growing, you began to see your friend's butt was beginning to grow, while finding that your pubic-hair was turning white, as it was beginning to grow on your body. Of course, after being distracted, you continued to see your friend, and find that his butt was growing a tail.
His tail matched the color of his hair, as it was expanding into a mane, and brown fur was growing. Your butt began to grow as well as you find that white fur was growing on it, and a blonde horse tail grew out of your butt. You could also see your testicles begin to expand along with your penis, as they changed from average human colored skin to black testicles, with a long pink equine penis. You had no idea why you both were becoming horses, or what happened to the hooded man, but you knew it couldn't be good.