Pierre has decided that during this particular time, this Kickaroo is his and his alone.
The Kickaroo is one of the favorite toys in the house. It can be used as a pillow, a pull toy, a kangaroo kick toy, even thrown and fetched. Here, Pierre looks at me to make sure I know he has laid claim to his toy.
He notices another cat that may be interested in the same toy as him (in his mind). I guess being the middle child makes you paranoid.