"This time Sarah drove the hire car, while mum teased her by reaching under her dress and stroking her pussy through the thin material of her panties....You bitch," Sarah giggled. "You'll pay for this later." Promises, promises," laughed mum. "You can do whatever you like to me dear sister on one condition." Which is?"She leaned over and licked inside her ear."Make it fucking dirty."And Sarah shivered, nearly losing control of the car."My God Suzy," she cried, "I nearly had a bloody orgasm. . giving me a wonderful view of her enhanced big rounded tits with their dark red nipples, and her hairless mound with fleshy prominent pussy lips."Do you want me?" she asked in a whisper."Oh crap" I thought. I was caught in a bind of my own making.The sensible answer should be "No" - not because she wasn't attractive but because she was my mum's BFF. That answer would also be seen as a rejection, and it would kill off my argument that she was desirable.She was waiting for my answer.I could. This guy looks happy to see us. It can’t be Glen. Is it a pod person that looks like him?”Cliff laughed at the antics of his sisters and patted the seat next to him. He said, “Sit down, Glen. Don’t mind those two.”Glen sat down smiling happily. He asked, “So what you are doing here?”Cliff looked at his two sisters and realized that he had become their spokesman. He answered, “Well, we are moving here. Sandra and Wanda finished their courses in record time. We started a little business and it is. .” she faltered, “If you want...”I knew what I had to say, though it was with a feeling of dread. “So when are you going?”“Next weekend. Daddy wants to take me, but would you? I mean I’d prefer it to be you.”I started to get the feeling that ‘Daddy’ wanted to take over her life from me, and I wondered whether, like his wife, he thought she could do better for herself than shack up with me. I asked the question.“Did you tell him about us – our engagement?”“Yes.” She said no more but her face.