Her heart was beating faster and her nipples were hardening against his chest. Let him think it was the excitement of his kisses rather than the idea ...hat she had embarked on her own private war.When his hand brushed down her back to her seat, though, she pushed it away. He accepted that. A tight hug, hungry kisses, his body against hers, that she would allow. Parts of her were private, though, and she would not allow him to put his hands there.She lost track of time. The sun showed late. "I started slowly taking all of her pressing in and out slowly. Going deeper with each movement."Pound my ass David, fuck your sister hard, ride me like a whore; use me David, I belong to you" she was yelling as I slide my cock in and out of her and pounded her ass with each thrust. My hands all over her tits. Kirsten was a fuck toy now, a human toy for my cock.As I was fucking her, I heard "Oh my God!" and saw dad at my door, then he closed it.I had gone too far fucking her, and could not. Time is hard to determine. My finger draws a line around the edge of each aureole. The brown nipples are erect and rigid. I softly pinch each. “Umm”, she moans. “Harder, harder! ….Oh Goddddd!” I oblige with increased pressure and add twisting to each nipple…. I finally let go and allow each breast to fall back.I pause and with a soft voice I say, “Okay, Mom, here is the handkerchief.”“What is it for honey?”“At the end of Mom’s massage she oiled my penis and had me masturbate so I could. We only live about eight blocks away.’ The lady said, starting to back away from the car. Hopping out and running around to the sidewalk, Gloria grabbed some bags and headed to her car. ‘Come on, it is to cold and you are not dressed really for this type of weather.’ Consenting, the lady tentatively climbed into the front seat and put the little girl on her lap. ‘Thank you very much. Really though, we would have been fine walking.’ Putting the car in drive, Gloria waved off the thank you and.