..... unless of course you get someone to do it for you." Oh Mum, I'm sorry," I stuttered. "I just couldn't help myself, seeing you and Dad looking so...hot and sexy. I hope you don't think it wrong of me."Mum and I had never talked together about sex, in fact I think they had left it for me and my older sister to discover for ourselves, assuming we would find out plenty at school and out with our friends, as indeed of course we had, but somehow, talking about it now, I felt that arousal I had. I grabbed a glass stirring rod, stirred the solution until there was an even color. So far, there was no violent reaction producing toxic fumes.“That’s promising, Dr. Alice,” Carmanjelo said.“Mmm, it is.” My eyes stared at his hard cock bobbing as he wrote on his clipboard. His Black monster pointed right at me. I licked my mouth. “Now we wait to make sure the reaction is stable.”“Of course,” he nodded eagerly. He lowered his clipboard, dark eyes staring down at my naked breasts with such. " No. I didn't do it again, but after that first night, it was as though your body was conditioned to it. Every time I talk, I feel that switch move. That is why I have been avoiding you, so that I wasn't manipulating you again."She grabbed my hands again, which surprised me. "Is that what you've been worried about? That I'd hate you after you told me?"I shook my head. "No, I didn't want to make you do anything you didn't want to do."She gave a small tremulous laugh, and I looked back up to her. Beside her was Marianna, her hair swaying about her. I winked at her as I lined up at my mother's pussy.Mom hooked her arm about my neck and pulled me down to her. I thrust into her as she sat on the chair, my knees half-bent. My dick slid into her incestuous depths. Her silky flesh massaged me. A tied of taboo pleasure rippled through me as I sank deeper and deeper into her cunt. She kissed me, my large tits pressing into her round ones.“Now fuck her hard, Isadora!” called Marianna. “Mmm, she.