Karla pirouetted across the floor and took to the pole with a vengeance. A series of gymnastic manouevres of unsurpassed skill drew gasps from the mainly male crowd. They wanted more and they wanted it now. Roland waited patiently, knowing what was to come.

Finally, Karla had worked the crowd for all it was worth.

She stripped off the one-piece costume, only to have it reappear on her slim form, with the decorative edge having switched sides. The crowd hooted with excitement, banging on the bar and making a din.

Roland grinned expansively. It wasn't every day there was a mathematics professors' convention in town.