Crystal lies back on the bed, and noticing that you are already hard and dripping pre-cum, she says in a sultry manner:
"So, I see that Dr. Pavlova got you started with our experiment... Are you sure you're willing to go through with this?"
You nod, staring at her pussy and aching for release.
"Don't worry," she says soothingly, "I'll give you a nice release at the end of our session, if you cooperate fully."
You nod and ask what she means.