not interested in sharing

Uncle Steven sent us a package that was full of toys for baby brother. Uncle Steven also thought of Weston and sent him some Disney books. We told Weston the toys were for baby brother and he said, "I don't want to share with baby brother. It's Weston's toys." Later, I caught him gathering ALL of the toys and carrying them to his bed. He curled up next to them and told me he needed to snuggle his toys. I wonder how he is going to handle it when baby brother gets here.