Two of the vibrators from her bedside drawer now had flat batteries. My arse was sore as a result of foolishly giving an affirmative answer when she a...ked if I wanted a fuck. I had lost track of the score. Was it five - nil? Or six?As the dawn light rose, she swung herself over my hips and took my captive cock and balls in her hand, lifting them up between her legs. Her other hand held my shoulder down and I gazed up at her huge tits dangling tantalisingly above me. "You can touch them now,". My girlfriend and I gave up trying to contain our sex life and her sister acted like she couldn’t hear us. That is until her last day. That morning I woke up to the cold feel of her sister handcuffing me to the bed. Completely shocked, I struggled and yelled to no avail. When I calm down she begins tracing my cock through my pajamas. “What’s a girl to do? You two have been tormenting me all week with your displays, so I need to take matters into my own hands” she said.She gave me the same. My penis similar to what'd I see in porn videos, long smooth tan colored cock, a shade darker than my skin. I was uncircumcised, my Mom made sure to protect me from society's damaging traditions. She was the kind of mother who would do anything for her k**s. She was not going to settle for a bad outcome just because of what people might say.I kept stroking the head of my cock, to the image of my Mom in her bathing suit. Imagining us in another world. One where I could be open with my sexuality. She was no longer sure how come she was able to hold on to the chair, maybe she had conditioned herself to hold on and her self defence mode made it happen. Either way she was about to be tested again as she felt the cane tapped on her bottom. She heard the swish, felt the pain, and was actually thankful that her bottom must still be dulled from the punishment so far as she found the stroke quite manageable and was now more confident especially after the fourteenth fifteenth and sixteenth.