Anyone who's seen the boys together knows just how much Carson loves Beckett. He never wants him to sleep, always wants to be right beside him, he doesn't even like it when Beckett is eating. He just always wants to be with his little brother.
It's (obviously) too young for them to start playing together, but I've somewhat captured on film them having some reading time together.
Whenever I go to get Beckett after his morning nap, Carson always wants to get in bed with him. And once he's in bed with him, he always wants to read him a book. It's adorable and totally melts my heart.