I'm going to pay him later

My youngest son just commented on his friend's mom. They live next door to us and are super neighbors. The said mom is---well, let's just say that I've been looking for a flaw and haven't found one yet. Model cute/pretty, perfect shape, friendly, etc. etc. So my son says, "B's mom is so skinny." Sigh. And I say archly, "So what's your point??" and give him a smile and make some comment about how maybe someday I will be too, or something like that. And he says, "I don't want you to be that skinny." "You don't? Why?" "You look good the way you are; I like you the way you are." Awwww. I wish I shared his sentiment but it was priceless to me nonetheless.