Sibling Fun or Rivalry?

So I hear Sophie nicely asking me for help and I make my way down the hallway to witness her in this predicament.  That's our hamper with Sophie inside and her little brother atop.  I knew Rhys was climbing more but I'm not sure how he managed this one.  Anyway, I'm pretty sure he "won" this one--just behold the look of gratification on his face!