Benjamin kept on fucking his niece for another half an hour as she came twice more. Benjamin was now using staccato sledgehammer strokes, he would pul... out his cock until his cock head was just inside Heather's cunt and then he would slam his full gargantuan thick length in brutally. He would then pause pull out and then slam it in again. Heather's breathing was abruptly halted with each thrust into 'HUNN ... HUUNN ... HUUNN'.Heather could not decide when pain became pure pleasure and when. My penis became limp and then she again lain alongside me. She pulled me again to make me lie on my flank and then we became face to face again. She didn’t cover my penis but kept bare and she was holding my limp penis. I think meanwhile she again became horny, she unbuttoned her night gown and made her breasts uncovered. The golden round shapely breasts were so cute to look at that I couldn’t but stared at their beauty. The nipples were dark black and surrounded with a wide black circle. She. 'You're so fucking sexy. I just need to sit here and watch you for a moment,' I said, as a cruel thought entered my mind. 'Keep going, faster.'Her toying became more and more aggressive. Her breathing was fast and off-rhythm, she moaned loudly and writhed as she vigorously fucked herself with three fingers.'Cum for me,' I commanded, 'cum for me RIGHT NOW'.I was amazed. I'd never seen her work herself this hard before, it was like she was in some kind of nymphomaniacal frenzy. Her whole body was. The following morning was like any other in my 19 years; Mom in the kitchen, breakfast being readied. She looked over her shoulder and smiled at me."Good morning, sweetie. Sleep well?" She always asked me that."Uh ... yes ... I did. How about you?" Okay. My lower back is beginning to bother me. It happened when I was pregnant with you as well. The doctor says I should get massages. I might call and set up an appointment."A light came on for me. "Hey, I could do it ... I mean ... uh ... if you.