There were times that I would walk into the kitchen during potluck and she would bend over to take food out of the oven and I would see her big volupt...ous Double D breasts cleavage and part of her bra as she bent forward picking things up. After church was over, I would go home and masturbate imagining what I saw, Kat's lovely big breast hanging down and that hott cleavage! I was cumming while fantasizing Kat almost every night in bed for three years. Many years later and after many families. This would be something naughty and exciting and fun and a little bit dangerous. But I wasn't sure if my motives were the same as Bethany's. As I watched the video, I felt myself getting more and more turned on by the thought - the idea of the two twins interacting sexually with each other. It was that thought, more than anything else, that made me pause. Eventually though, I nodded my head for Bethany to see.Bethany started bouncing up and down, and her enthusiasm was infectious. Pretty soon,. ‘I figured,’ I replied. ‘See you tonight.’ ‘Goodbye,’ he said and drove off. ‘Are you okay?’ my mom asked as I watched pop’s car leaving the parking lot. She had moved over to the driver’s seat in her car. ‘Sure,’ I answered, forcing a smile on my face. ‘You’re lying,’ she said, making me laugh. Mom could always read me. I looked at her and couldn’t stop myself from picturing the last time I saw her before this whole thing started. She hadn’t even recognize me. The truly sad part was that. I closely examined her budding womanhood; her pale, peach-shaped breasts, with dark brown nipples that reacted well to the touch of my lips and the hands, and her pubic area, with scant covering of soft, black fur and the perfect pink folds of her vagina with its swollen clitoris, on duty, standing like a watch dog over the entrance. Her mound protruded nicely from between her legs, an open invitation to a ready cock or tongue. “Do it to me again,” she begged like a school girl. I spread her.