Is Daddy a BIG boy?

On a recent morning I was putting sunscreen on my 3 1/2 year old (we live in California and yes,they still need sunscreen in winter) and he asked to put it on himself. Not wanting him to get it in his eyes, I dissuaded him with "you need to wait until you're a bigger boy to put it on yourself." Which he followed up with, "Is Daddy a big boy - and puts on his own sunscreen?"