Again, the greens went down the court and scored. This time, Betsy reached under the blanket and shimmied her butt. I couldn't see anything, but a moment later, her grey sweatpants fell in a limp pile on the tile floor of the TV room.

Stupidly, I turned to my sister. "If we keep going like this, we're going to be naked pretty quick," I said.

"And that's a problem because why?"

She had a point there.

The oranges tried to answer once again, but the greens got a steal and dropped a layup the other way. I stared at my sister expectantly and she didn't disappoint. She took off her...