She began to pick up the pace a bit, then I saw one of his arms touch her shirt. She lifted it a little and he put his hand up her shirt and grabbed a...tit. She talked to him the whole time.After a few moments, I saw her head disappear, then rise up again. It was moving up and down and side to side. I could clearly see that she was giving him a nice, slow blowjob. I was already horny from reading, but now it was getting worse. My vagina was wet. As I watched, she would alternate between blowjob. I watched them with glee, knowing that they didn’t know I was there was such a turn on. The guy seemed to really enjoy my step-sister and Isabel really seemed to like him too. It wasn’t long before my fingers had slipped deep inside my pussy as they had changed positions. He was fucking her from behind, doggy style. His hands on hips pounding her for all he was worth. I could hear the headboard of the bed banging against the wall. It was so hot watching my step-sister getting fucked, I could. Neither of us moved for some time, but when my father began softly snoring mother eased her body away from mine a little. I was immediately saddened as I was enjoying the feel of my penis pressing against her soft stomach. I need not have worried though, because she silently drew her nightgown up around her waist, and raising her leg, pulled me back into contact with her now bare flesh. My penis was now jutting up between her legs, and she closed them on it, making me feel much better than. He pulled out suddenly and sprang tall before her face, her relish dripping thick from every inch of him. There was approval in his laughter as she spat out saliva and gasped in air. “Now isn’t that a beautiful fucking mess?”“It is. Oh god, it is.” That big drenched phallus—how could she disagree? In her heart-pounding excitement she made the crazy offer. “I’d like to try it on my own.”“Well be my guest.”Brooke gobbled him up and dived onto the shaft before she could chicken out, but minus his.