I currently have a 21 month old female and a 11 month old male and I am really getting all tingly for another. Does anyone have an experience introducing a 3rd dog into a pack that young. Ive had both pups since they were 10 weeks and in the time Ive had them there hasnt even been a single solitary angry growl between the two. The female gets along with other dogs usually pretty quickly. The male was scared but hes now super accepting of people but still anxious and kind of scared around other strange dogs. I am even torn between what sex to get. Having 2 intact males is probably asking for trouble, but Ive seen some issues with multiple female homes as well. My thinking is doing an addition while both are fairly young would be an easier integration to the pack than once they are older. But I could be totally wrong about that...