Tell her to take off the pants
From Create Your Own Story
"The pants," you say. "You don't need them." She nods, smiling slightly. She graps the button of her khaki work slacks slowly, then unsnaps it quickly. She bites at her lip and looks up at you as she works the zipper down, then grabs the waistline of the pants. Pushing them down very slowly, she leans forward and lets her pendulous breasts hang and sway between you and your view, until the pants are bunched at her ankles. She steps out of them, and stands before you in nothing but a pair of white boy-cut briefs that are so wet you can see the very shape of her nether lips.
"The panties too?" She says, now a bit more forward. She's smiling from ear to ear as she recognizes your delight.