Animal Play- Pony/Horse, Cat/Big Cat, Dog/Wolf
Animal roleplay may be either a non-sexual or a sexual role-play (when it may also be called petplay, ponyplay, ponyism, kittenplay, or pup-play, etc).
In its erotic sexual role-play form, one or more of the participants takes on the role of a real or imaginary animal in character, including appropriate mannerisms and behavior, and sometimes a partner will act as another animal, or, in a sexual context, may take the role of rider, trainer, caretaker, or even breeding partner.
The principal theme of animal roleplay is usually the voluntary transformation of a human being to animal status, and focus on the altered mind-space created.
The most common examples are probably canids (pup, dog, wolf), felines (cat, kitten, lion) or equines (pony, horse). Animal roleplay is also used in a BDSM context, where a person may be humiliated by being treated as an animal.