I heard a great story of another cat that had two houses. The families were near neighbours in a big city neighbourhood, but barely knew each other. Cat would come in at evening for neighbour1, get fed, stay the night, leave in the morning. There was a death in neighbour2's family, so neighbour1, feeling a bit guilty about not knowing close neighbours, took a plate of sandwiches over. And there is cat, ensconced in an armchair. Turns out he would go straight from neighbour1's house in the morning, meow in at neighbour2's, get fed again, spend the day, get fed and put out for the night and head for neighbour1's house.