Well...I wanted another male. We already had Vegas and I thought getting another male would be perfect. Vegas is not aggressive or in any way Alpha. But, things didn't work out and our potential male puppy passed away. So, we took the sole survivor of the litter...Orion. It would have been more peaceful in the house with two fighting males. J/K. I guess it really depends on Mooshi. How is she around other dogs? Gerie and Ida are sister of the same age and (I believe) get along great. @jillh10 has two boys and although baby T is a terror (just cause he's a baby bully) he gets along good with his brother for the most part. I believe it really depends on the nature of puppy 1 and new puppy 2. Don't choose a puppy that is likely to get kicked out of puppy daycare after 15 minutes. She may be too much for Mooshi to handle.