Rough Housing

This is the conversation Kaius and I just had:

Me: "Kaius what just happened to Monroe?" (She started crying as if she got hurt)
K: "I Punch her."
Me: "You do not punch your sister, what happens when you punch sister? Go to time out?"
K: "Daddy likes punch"
Me: "Yes, Daddy loves to play fight with you, and you can punch Daddy, but not Monroe, or Mommy, or anyone else. ONLY DADDY."
K: "I LOVE DADDY!" (Pronounced I WUB DADDY!)