Let me guess: He wears a thong?

(CBS News) — The presidential debates are surely stressful for President Obama and Mitt Romney, but First Lady Michelle Obama says the events give her some anxiety as well.

“I compared it to the Olympic parents watching their kids on that balance beam,” Mrs. Obama said in an interview on ABC’s “Live with Kelly and Michael” that aired today.

The first lady told the talk show hosts that at the last debate she found herself squirming in her seat, but she said, “they really caution you to be quiet, and I try to follow the rules so I don’t get in trouble.”

Asked whether she prefers Mr. Obama wearing boxers or briefs, she jokingly replied, “None of the above.”