My two babies are littermates. We actually purchased Armani about three weeks before Chanel, but we loved him so much and she was so irresistible that I had to get her too. Boy are they so happy together. It's so sweet. It's actually easier too with vet checks etc. Everything is on the same schedule. We even got them spayed/neutered on the same day, so they had pretty much the same down time. I want anther one though, but not for the next couple of years.
