"Hi!" she says beaming her gorgeous smile at you.
You reply similarly, and then when she says nothing ask about the study.
"Oh," she says as if she'd forgotten.
"How foolish of me to neglect to explain! You're actually already taking part!"
"I am?"
"Yes. You see this study of mine tests and measures the reactions of aroused males when they are in proximity with young, attractive females in various circumstances. In fact I was actually observing yours on the house's cameras as you walked to my office. Fascinating! Though not remarkably different from most of the early reactions of my other subjects..."