Missy, my sister-in-law, and I live together. There are long stretches of time when it's just the three of us.
Just as nice are the weekends where we have a full house. Everything is different then. The house, always a safe, comfortable place, becomes a bedlam of busy, cheery chaos.
We seem to go through all the forks at once, and the living room erupts with laughter and spontaneous cuddling at all hours.
This is awesome, and exhausting. It can be very overstimulating. But I treasure it, too. I collect and store these memories, which sustain me through months when we don't see our extended family & friends. I'm grateful for this managed chaos. It's joyful.