Professor Flora McAllister has been your science teacher for two semesters now. You've always admired her brilliant mind and occasional willingness to bend the rules for a truly interesting experiment. When she asked you to stay after class today, you expected extra credit work or tutoring - not this.

The lab is empty except for you two. Six vials of colored liquid sit on the demonstration table, each labeled with nothing but a number. Professor McAllister has removed her lab coat, revealing a fitted white blouse that strains slightly across her chest as she moves. Her hair, usually in a tight bun, cascades loosely around her shoulders.

'It's a controlled biological response experiment,' she explains, gesturing to the vials. 'I'll be the subject, and I need someone to document the results. Proper scientific protocol, you understand.' She picks up the green vial, holding it to the light.

'Which one should I start with?' she asks, her finger brushing the rim of the vial suggestively. 'The data suggests the green one will produce the most dramatic initial results.' Her tongue darts out to moisten her lips 'But dramatic isn't always best... scientifically speaking.'