Our 2 year old prefers to tow the line, but he still appreciates baby's fondness of rule breaking, and he usually giggles along, unless it's spoiling his fun in anyway, then he likes to take it upon himself to tell baby off.
So both boys were sharing a bath a few weeks back, and I'm sitting there policing these antics, when our two year old, reaches over and flicks baby's willy, with an accompanying high-pitched "Ding!' just like he's ringing a bell. It cracked me up. How could the little man resist when it was being shaken around in front of his face like that?
I'd forgotten the little 'tete-a-tete' until this afternoon, when I loaded a naked baby into the wagon, beside his big brother. I saw my 2 year old look curiously, and before I knew it the little monkey dinged baby's ding-a-ling again!
Trying desperately not to laugh, I heard myself telling my 2 year old "Leave baby's willy alone. If you want to play with a willy, you can play with your own!"