What would you say?

I have copied this from a fellow blogger - Eros Blog I will add his link in return.

Wife, a former model who had gained 6 stones in the three years since marriage: "I'm sooo fat."
Husband, who had been hoping to get laid and is dismayed by this development: "You are terribly sexy. You've got great curves."
Wife, not letting it go: "Tell me: Am I the fattest woman you've ever shagged?"

Question for readers: What is the proper response to this? I can't imagine.

If you visit Eros you can read the whole conversation and some of the replies.