When it rolled around to lunchtime, Robert sat his class at the very next tables to Michelle’s class. Both teachers encourage making friends in the ...ther’s class. Some parents tried to interfere and accuse the teachers of forcing the kids to have adult-type relationships. Robert and Michelle politely explained that these children have already made adult choices, now it was time to teach them how to handle the choices that they made.It wasn’t until Christmas vacation, that Robert found himself. At your age your body's very busy, developing, testing, growing." She paused, staring down at his bulge. Grinning, she went on. "Let me guess, they touched each other's breasts, right. Playing with each other's nipples?" Jamie nodded, recalling the full kiss on the mouth that had come from Emma rather than Lauren, and the way his sister had pulled herself out of the pool and stood at the edge, towering over Lauren. From his vantage point in the lounge he could see between her legs, her little. His mom had come over twice for three weeks & two weeks. He would come to our house alone and they [n & s] fucked from 130pm to about 5pm those weeks. He would come home by 1pm. I would be fucking M then. He would wait for me to finish. He would drop her[m] to ‘their’ house so that she could take care of MIL; have lunch & come over to our house [on pretext of official work] & they [n & s] would go to the bedroom and lock the door and he fucked her. I would hear their love conversations keeping. “My sweet Isidora!”“Mom!” groaned my futa-sister.Then Isidora was rising. She'd sensed the same thing that I had: our mother was ready for the next level of intimacy. Isidora grasped her big futa-cock. It thrust hard and powerful before her. She stroked it as she settled her knees on the edge of the chair between Mom's spread thighs.I trembled as I watched the incestuous tableau before me. My futa-sister's cock pressed into the pussy that had birthed us both. It was such a taboo act. My cunt.