I just weighed Jackson last night, and he is
4 lbs. even!!! He's 12 1/2 weeks old!!!

He is absolutely the strongest "little" dog I've ever seen! He's gonna be my teapot, I think.
Here's a picture of my two guys. At first, Jake would have no part of Jackson laying anywhere near him when they slept. As you see, he's warming up to the idea. When they were first laying down, they were on opposite ends of the couch, then Jake gradually started moving closer.
He's looking at me like, "mommy, I really don't want to lay with him, but I just wanted to get under the blanket....yeah that's it." He loves Jackson, he just doesn't want anyone to know it yet.