Ask about the pills

"Ah, would you mind just running down the differences between A and B again?"
"Of course," she picks up the pink pill and holds it in the palm of her hand. "Medication A is hypothesised to have a primarily neurological effect. Think of it like the next level of viagra, this should cause sort of an overwhelming level or horniness, capacity to climax multiple times, and an almost desperation level desire to do so. We're currently playing about with the dosage." She delicately places the pill back on the surface while you try to process that. She holds the green pill between her finger and thumb, "Medication B is a more physical effect, our current model predicts temporary and reversible doubling of the size of the male genitals both shaft and balls, with an associated increase to ejaculation volume to a more substantial degree."

You should have read that consent form more closely, you might have signed even quicker. This is some kinky science, they must have obscured this by using detailed technical terms for the whole thing. The words bigger dick definitely should have jumped out at you in your skim read of it. That maybe goes some of the way to explaining why you're naked, you guess.
"Any other questions?"