Then up….then she sat down and stayed there for a bit. He must have been balls deep as she was looking straight into my eyes when her own eyes rolle... back into her head. I could see her go up and down with Daves thrusts. She put her hands on Daves knees as he hammered her for behind and below. She did all she could to not make any audible noises but she was breathing like she was running a race. She let go of the grip of Daves left knee and moved her hand to her pussy where she violently rubbed. She was getting wet just smelling her and being this close to her, Mistress Ambyr then spread her legs wider and told Cris to get underneath her with one hand on her belly and the other on her sexy ass with her face in her crotch, she gladly got into the position, smelling her scent even more now and feeling the wetness so close to her face.Mistress told her to rub her hair and face in her crotch so she would smell like her pussy, letting any other girl know she was taken. Cris rubbed all over. Rachel was an only child, and Cassie was my only sister, indeed my only sibling.That evening, as I changed for our appointment, I mused over my own family’s likely responses to Rachel.When I was with Rachel in the summer, we were seen, and my mother was all agog to learn about my new ‘girlfriend’. I had to disappoint her yet again – I was doing a married friend a favour, and there was nothing in the relationship. Cassie had backed me up on that.Now, however, there was a development, I was. "How about if you win then I'll pay you $50,000." She shook her head at him. "No I'm tired of you throwing money at me. Let's just make this a friendly wager no money." He looked at her. "Ok then what do you have in mind?" Before she stop herself from saying it, "I want to fuck your brains out." She quickly slapped her hands over her mouth and knew she was blushing. Matt started to laugh with a sly smile on his face. She had to quickly think of something. Something that would be great to watch.