Some of the girls wore the most alluring lingerie under their dresses, and insisted on showing it to me, explaining that it had something to do with an experiment they wanted to run to see how aroused it made guys.
I started snapping pictures of some of them and taking them home to Tom to get his reaction. We had the camera-based hardness meter installed in every room of the house now, set up with readouts that were discreet and hard for someone to see if they didn't know where to look, like the one in this room...
Anyway, I showed Tom these photos casually, and got his reaction to each of these young women.