He felt the tip of the cock against his hole and she leaned over him. “When your ass feels like it is about to split wide open and you want to screa...,” she whispered, putting one hand on his shoulder and the other on his hip, “I want you to try to concentrate on how much pleasure you are giving me, and maybe it will feel a little better.”With that last word her hand tightened on his shoulder and she drove into him, wringing a strangled moan as he felt the cock ripping into him. She pulled most. "Follow me. I'll show you where to setup" she said. I walked a couple of metres behind her, checking out her sensational body shape, although most of it was hidden by her robe. She led me down the hallway to the back of the house where we entered a huge airy and light bedroom.It was massive in size. A king size bed to one end and a huge clear area to the other end. A open plan bathroom was to the side with a large spa bath and semi-outdoor shower beyond that."Wow ... this is impressive" I said. I brought my pussy soaked hand to my face and licked it while inhaling, taking in my step sister’s intoxicating taste and aroma before continuing to unbutton my pants. Sam looked down to see what I was doing and right then I managed to take my erect cock out.I signaled Sam towards it and after a few reluctant seconds on her part, she placed her hand on my erect member and started stroking it. I in return positioned my hand back over her wet haven and inserted a finger inside her sizzling. And over the years I have had a few affairs. I gave in to my husbands pressure and he found two couples on craigslist. We went to the bar and had drinks with these people. Both couples were older, both men were chubby and hairy. The women looked to have a few miles on them also. The men were eyeing me like I was a piece of meat. I decided to give my husband what he was looking for and maybe make him sorry for this idea. I started to flirt with the men as well as the women. We all decided to go.