No regrets here. Jolie was nearly 10 when we got Sadie and she was a bit irked for a while. With my human kids I can remember thinking that I might not want a 2nd baby because we were so focused on MK. In the long run I think it is good for all concerned when a 2nd child or a 2nd puppy comes a long. There is plenty of love to go around. My doggie girls wait patiently for their turn with Mommy. They all know that they are loved.