Yes, but deny her

You surprise her by reaching out and gently taking hold of her shaft.
She gasps and freezes. "Wh-What are you gonna do?" She looks up at you.
You don't respond, slowly moving your hand across her flesh. Her already impressive manhood is growing more incredible every moment. What was originally a 9" hanging sausage transforms, growing in your hand steadily until it reaches it's full proud length of almost two feet long, throbbing with every simulated heartbeat. She shivers as you wrap your hand around it, not quite able to bring your fingers together on the far side.
She moans softly as you stroke her.
"Does that feel good?" you ask.
"Yes," she says.
"Good," you say, and let go. You turn away, resuming the tour you were giving her before.
You are about to open the first door when she interrupts you. "Wait, why'd you stop?" she asks.