She started pushing back and working on it. I started pumping back creating perfect friction. I couldnt believe...i was actually fucking my sister...in law. While she was fucking hard on my rod i started playing with her brown hole. She jumped a bit and said..."what the fuck are you doing?" "Shut up, its only a finger..."i said slaping her ass."I never did anal and dont want it" she said with a serious face. "Dont worry ...your ass is safe with me" but i kept playing with it so soon. I expect you'll be there too now that you're no longer cumming every time you sit on a hard surface." Well," she said slowly, "if everyone, even Mom and Dad are going, someone should really stay here to watch the tour mobile." I'm staying," someone said from behind her.Turning Lana said, "Melissa, after the hell you've just been through you more than anyone deserves to take a break and enjoy yourself." We still don't know if the authorities might be looking for me now," Melissa said, "until my. "Please," she whimpered, "I am full to burst, I haven't been to the toilet all day." Please sir, I haven't been to the toilet all day," I mimicked, in a sneer. And then, in another menacing tone, said, "Pissing. With me you say pissing. Now what did you say?" Please, I need to piss." Not until I say so," I said, as I forced her arms behind her back, and slipped on the handcuffs.I ordered her to lie on her back on the bed, and then to raise her knees as near to her tits as she could. I tied them. "The combination of the subtle flattery and implied threat of disapproval were sufficient to convince Caroline that it was a good idea after all. "Well, I suppose no harm can come of it," she said. "He'll have his box on, of course. Mind you, I don't think there's much to frighten them between his legs." Oh, I'm glad you mentioned his box, Mrs Bullworthy," Isobel cut in looking down at her e-pad once more. "There's just a few last questions and that was one of them. From what you say, I take it.