And I did exactly the same thing - eyes wide, I stared in shock, my mouth falling open. It took me a few seconds to tear my eyes away and when I did I screwed them up tight and rubbed at them, sighing heavily.

"Did you really have to do that?" I asked.

"You don't like them?" Sandy sounded hurt but I wasn't biting.

"Trick question. Next." I could hear her t-shirt move and, risking a glance, saw she'd pulled it back down into place. "So what was that for?"

Sandy shrugged carelessly. "I wanted to see if you were some creeper leching over his sister or whether you were...