That is not to say that animal transformation fantasies are always separate from sexual arousal.
Animal transformation fantasies are often enacted between partners in consenting relationships. One individual will typically take on the characteristics of an animal or animalistic creature, such as a pony or a vampire, while the other human participant cares for his or her partner. It’s most common for females to take on an animal-like role, although this is not always the case. Sometimes, a sexual encounter is what causes a person to take on animal characteristics. A non-sexual event, such as a bite, an injection, or a particular costume with transformative powers, may also instigate animal transformation.
Animal transformation fantasies are featured in many erotic fiction stories. There are specific websites dedicated to stories of this type.