Hi, my girls are fullgrown at 2 and 5 lbs. Trixie (5 lbs.) plays alot more then Pia. She's also quite rough and beats up my poor Pekingese who's 15 lbs. Pia never plays with Snoot (15 lb peke) but she does with her sister Trixie. Pia would shock many people. She's quite fiesty for 2 lbs. and even though she doesn't play as much as Trixie, she is my dominant dog out of the three. She'll jump on Trixie's back and growl. I have a blast with all three. I play rough with my peke (snoot) and Trixie loves to play fetch and Pia likes to attack my hand. Honestly, I think they're just as much fun as the bigger doggies. In the past I had a German Shepard and I think no matter what size the dog is, you can always have fun with them
