Serena Brook and Sue Scott were trying to sort out a little roommate squabble.
Brook was the level-headed one, calmly trying to negotiate the logistics of a grocery store run. Scott was being high-maintenance, dramatically waving her hands in the air and requesting "Paper! Paper of the toilet."
"Toilet paper? You need toilet paper?" Brook said, exasperated.
Sound like a domestic partnership on the rocks? It's not. At this rehearsal a week ago, the tension came courtesy of the writers for "A Prairie Home Companion," who pitted Brook — the show's first new actor in more than 20 years — against the woman she essentially replaced.
"I love you guys as roommates," commented Chris Thile, who took over as host from public radio saint Garrison Keillor last fall.
He and Brook will wrap up their abbreviated debut season Saturday at the Fitzgerald Theater in St. Paul.
If there is tension between the two women — they insist there isn't — it wasn't evident at rehearsal as Brook, 30, played straight woman.
The Eagan native's chance to be silly came in an earlier sketch, playing a bubbly Minnesotan who picked up Thile in a new self-driving car. Scott was in that sketch too, but as the vehicle's soothing computerized voice. It would hardly have been funny without her.