Mating Outside of Heat
From Zoophilia Wiki
Many Zoophiles ask if it is possible to "Mate outside of Heat", meaning if it is possible to mate with their animal loves outside of their seasonal estrus cycle.
The simple answer is that depends on the animal itself. Males are usually always ready to mate, so problems are hardly to be expected. With female animals, the situation is quite different. Females are only ready to have sex within the mating season. However, there are exceptions. Some animals show interest in mating outside of this time and have no objection to it. Nonetheless, this is very different from person to person. A basic ethical rule is if the animal shows aversion or does not want sex, all actions must be stopped immediately!