It was so simple yet so complex. Both of them were special agents among special agents. Both top of the line at their jobs. Her an undercover agent, him a psychological profiler. Both knew how to fringe interest where there was none, both knew how to divert attention away from subjects of interest and peril.
There was only one person who could see through their natural yet delicate and complex cover; Hetty. What most had wrong is that Hetty was very much on their side. She was truly a hopeless romantic, and to be aiding a secret office romance proved to be fun and enjoyable treat to her. Hetty was all the cover and insurance policy they would ever need.
Or so they thought. In the end it would be the little things that gave them away. The little things, that once added up made a huge sum and led the team to the truth. It wasn't a love child, both were too careful for that. It wasn't even the engagement ring that each wore on a chain around their neck that led to their discovery.