What will he do next?

I have mentioned several things that J has done to his baby sister: crawled into the pack and play with her, covered her face with burp clothes... Well today I was on the computer and he was in the living room eating lunch. He came and laid on the floor under my chair and was saying something about his "baby sister". So I ran into the living room to check on her...and this is how I found her...
....J had smeared ketchup all over her face.