Welcome to the dreaded 4 month phase - when all the rooster's hormones kick in.

He's all grumpy and messed up and wants to be above you. If he does it, kick him away. Enough to show him who's boss. You don't have to hurt him, just a, "Watch your boundries mister!" My roo-boy started early. (8 weeks) I pushed him around just a little, and he is now perfectly behaved. The reason he does it to you and Katie, is because you are, "Preening" him, what other submissive hens would do. He is pecking you saying, "hey girl! Scratch my back!" Your husband doesn't so much, so Pigpen thinks. "Oh, ok, I'm below him." Not saying you have to stop petting him and rocking him to sleep. Just make sure he doesn't bully you around.