Definitely double the fun ! Lex was a year old when I got Lulu and the first few days there was some jealousy but I loved up on him and didn't over coddle her and he realized he was still my stud muffin. It's been great because they play well and keep each other company.
If you can afford it thenI say go for it. I was eyeing a third the other day and my husband gave me the evil eye. They are very addictive.
