"Mmmm," he agreed, inhaling deeply as her hand stroked him through his clothes. He wanted them off, gone, Banished now, but there wasn't a rush. "And you'll be hard for me..." He couldn't contain the chuckle that came with the thought. Muriel, hard and wanting, with him on his knees. Spread under her.
George groaned softly, covering her hand with his for a moment of pressure, a rougher rub across his crotch. "God, I can't wait until you know how good that feels."
He pushed her robes loose, letting them slither to the floor, an elegant heap of silk, and turned to her underthings, loosing them gently and letting them join the robes on the floor before stepping back to reach for the box. Easy enough, said the directions. Soft straps made knickers of a sort, and putting them on would activate the spell that made the cock 'belong' to the wearer.
George pulled it free, then dropped to one knee, holding it open for her foot to slip through.