I regarded her with surprise. "How the hell did you do that, Amie? I'm sure that she didn't do it in the bushes."

She looked at me slyly. "I found a way. You wouldn't think she was good in bed, would you?"

"I'd not given it much thought, really."

"She was, though. She'd fuck like a train...I'd get exhausted just watching her." She lapsed into silence and I could see her remembering.

"Do you only ever watch, or do you ever take it further?"

"You mean join in with Mum and Dad?"

"No, I mean with anyone. Weren't you ever tempted to join in -- you must have got aroused."...