Madison sounds similar to Gizmo... he is a huge mommy and daddy's boy. He is snuggled next to me as I type this
I brought Rylie home around 9pm, and Madison was pretty sleepy when we arrived. I showed her to him; he sniffed her, and then kind of left her alone. She was a lot smaller than him... he weighs 5.5lbs, and Rylie was a little bit over 1 lb at 9 weeks. They actually hit it off really well. This isn't saying that he's not jealous, though! If Rylie wants my attention, Maddie will push her away with his paw. At first, he didn't even want to share his toys. He pulled them all under my bed so she couldn't get to them! Then, he stole her toys as well. After a few days, they started snuggling together, and they are great friends now.
I cuddle and pet them both when they want attention. At first Maddie hated this, but he learned that he was still getting love.