how I knew...
It happened twice in one day really.
A Sunday.
First, Jim came into the office, and - two desks between us, mind you - I could not breathe through the thick smell of peanut butter I was sure he had eaten for lunch. He confirmed my suspicions and we parted ways.
A few hours later we rendezvoused in closer quarters - the bedroom. But two seconds of kiss told me all I needed to know. He had eaten a chocolate chip cookie sometime within the past hour. And the wafting, chocolatey sweetness was simply too, too much.
So on Monday I went to the store. To confirm what by then seemed obvious. There will be a whole lot more tooth brushing at this house over the next 9 months.