But not quite. Unlike times when I was alone, except for a magazine or a video on my computer, when I would pound away for a quick spurt, this time I ...oved my hand slowly. Actually too tired to get up and go into the bathroom to clean my pipes, I tried to make sure that I didn't wake Mom.But alas, even peaceful jerking off will cause a mattress to move. And while I was still quite a ways from relief, I felt Mom move in a way that told me I had wakened her. Even her breathing had hesitated. I. I ask again wit a lil threat in my voice, and the bitch tells me to shut the fuck up. I shake my head as to clear away fog or sumthin away from my brain. then she starts touchin herself, im tellin dis broad ta stop, i cant watch this shit...and she starts moanin and gyrating and tellin me ta watch her, i tell her no repeatedly, but she becomes more insistent, tellin me that she wants ta cum, but cant till i look at her, so i watch, and cant help but start to get turned on...id never seen. Oh, it was the best I've ever felt from a woman's mouth. She was masterful and all I could do was sit there joyfully as I was sucked right up to the heavens."Oh, Tara, you are fabulous, I've never been sucked so good before, I sure can't hold out, I'm gonna cum pretty soon if you want to finish me by hand," I gasped.She just looked up at me and went right on as I tensed and my cum went spurting into my sister's mouth as she swallowed every drop. She sucked a bit more then lifted her head to. "Peter!" I said warmly. "It's good to see you again!"We shook hands."Come here Greta!"She hugged me and gave me a kiss.Peter paled when he saw my head. He swallowed hard but managed to smile. Greta must have warned him. He made no comment for which I was grateful; I had heard it all before."Dad," said Greta. "Mum's called the wedding off. She's very upset. Derek is very angry. He was telling her that you, Geoff and David are trying to destroy 'the wonderful relationship they have'. Yeuck!".