I also have a male and female cat that are in love. I recently acquired a female stray and the female here simply will not tolerate her near my male cat. They have had two litters together and it is rather fun to watch them interact. When the two females get in to an altercation the male jumps in the middle of them and breaks them up. He then literally bullies the stray female into a different room and goes to the mother of his babies and licks and holds her. People who see this happen are amazed at their actions. It is great to watch how they interact with each other. They sleep curled up together and are constantly washing each other. IT is awesome!