Zada and Azrael are 1st cousins and 6 weeks apart. They were in the same nursery together before I got Zada. Two months after I got Zada, I got Azrael so Zada would have a buddie. They knew each other right away and are very bonded, but they do their own things. When the girls were 3 years old we got Razael. Azrael accepted her before Zada did and they are joined at the hip. They lay outside the bathroom door together while I'm in the shower, they lay together and watch me when I'm in the kitchen. They are together outside and in. I don't know what they would do without each other and I don't want to know.