Then suddenly, just as she was really getting into it, Rupert pulled back.

"Oh Samantha, I'm so sorry. Sorry Sam."

She stared back at him, completely confused.

"What? What is it, Rupert? Was it horrible?"

Rupert spread his hands, his expression one of despair.

"No, no. It was wonderful, perfect. I just can't do it."

"But why? I don't understand. I thought it was wonderful too."And now he was spoiling it.

"I'm afraid I'll hurt ...