Sibling honeymoon is over

Well, it's here, the time where my official title now includes wife, mom and referee. Trevor is now old enough to defend himself from Darby's advances, which include hugging and kissing him to death, taking each and every toy that Trevor's playing with away from him, pushing him away whenever he gets in her way, and on and on. Him defending himself consists of more pushing, grabbing, and screaming at the top of his lungs! Oy! It was fine when Trevor could really care less about what he was playing with or where he was playing but now he gets pissed when Darby takes his toys. He also really likes to do anything Darby's doing and I think she's finally realizing how annoying it can be to have a little brother :) Hopefully we can find a peaceful way of working this out without too many fists flying or too many ear drums pierced . . .wish us luck :)