Thank you everyone for your lovely comments on my boys.

Lisa, Willy's paws aren't as big as you see in the picture, but they are a bit bigger then the older boys. I think he will be a big boy like his brother Mooky.
Willy is about the same size as what Mooky was at 9 months old. Mooky will be 4 years old in July and weighs in at 18 pounds. He is part Main Coon.
So we shall see how Willy turns out.