German teenager Regina Mayer asked her parents for a pony, when they refused Reginadecided the next best thing would be to train Luna, one of her family's cows.
Although reluctant at first Luna now seems quite happy to jump the surprisingly high fences built for her on the family farm.
Meyer said: "I still want to get a horse since it's just not the same. But I'll always be with Luna and do things with her. She'll stay my favorite."