You're all going to be sick of me soon.
I do apologise. I am a new pet owner and have the 2 most beautiful kitties. I'm obsessed with them. 

Anyway. They're both 8 weeks old, playful, happy, play fight a lot with each other however, the male kitty is a growler. He growls at his sister if she goes near their toys, (that they both share) their food, etc.
They was sharing a joint double food bowl until today as I decided to keep their food separate. I'm hoping this will help. I'm not sure how to approach the toys though. I can't just tell them to share or even split their toys up.
How do I stop him being so possessive?
Any tips?