Author's note: This story is categorised as 'reluctance' rather than 'non-consent'.
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When Lisa was done she daintily kissed both Polly's nipples and sat back.
Whilst Lisa was running her tongue over her lips, Polly, looking down at the floor, was whispering, "Fuck. Fuck."
"All in good time," he said, and grinned at Polly. "You're really worked up now, aren't you?"
"Yes," she said, in the thick, far away voice of a woman who has just been given a tongue bath by her naked teenage daughter.
"Don't want to touch yourself right now though, huh? Or you want to but it wouldn't be right. Right?"
Polly didn't say anything, but her fingers were making small involuntary rubbing motions against her thighs.
"Polly?" She looked up up at him. "Touch yourself. Now. That's a command. We're going to watch you."
Polly didn't need telling twice. Her back arched, her head went back and her eyes closed, one arm went behind her to support herself, the other she stroked her clit with in small, tight circles.
It didn't take a minute before she climaxed silently with a shudder, stayed perfectly still for a long ten seconds, then opened her eyes and let out a long sigh and smiled at no-one in particular.
"That was so wrong," she said.
"Lisa did a pretty good job, huh?"
"I feel thoroughly... cleansed."
During the performance Lisa had gone back to absent-mindedly rubbing his come down her stomach and into her pussy.
"Then that would make it your turn to clean her, no?"
It look Polly a second to realise the implication. Then her eyes snapped down to Lisa's hand spreading his come across her pussy lips. Then up at him.
"Uh, I don't think... We can't..."
He let her hang like that for a second.
"Oh, very well. Plenty of time for all that later. Lisa, you're going to--- Lisa, listen!"
Lisa had checked out. Another of her favourite things was to get to the edge of a climax and hold it there. That's where she was, until he snapped at her."
"Yes? Sorry."
"You mother isn't going to return the favour---"
"That isn't exactly what I---" started Polly.
"Hush. So, Lisa, this is what's going to happen. That show you both put on has me hard again. So I'm going to take your mother up here on to your bed and I'm going to fuck her. You are going to sit right there and keep edging yourself whilst you watch us."
"Wait, why do I have to stay down here?" Lisa protested as he got up, picked Polly up by the waist and threw her on her back on the bed, making her squeak in shock.
"Because you are my... What was it again?" he asked, stand over her.
"... I'm your obedient little slut," she answered, pouting.