This has never happened before. Our two older cats hate each other. They pretty much refuse to be in the same room at the same time. It's absurd. They both love little Joey. But no combination of the three ever tends to snuggle together. So stumbling on this today was cause for many oohs and aaws. :)
Even though being seen this way caused the older two to run to separate rooms 30 seconds after this picture was taken!