"I just don't like it," the 27-year-old Sports Illustrated model told Rivers, adding that her lack of underwear made it hard for her to keep covered while she was sitting on set.
Teigen's confession and subsequent explanation about her tips for a "heavy flow day" sent George Kotsiopoulos, the show's only male co-host, into a fit.
"TMI! TMI" he yelled. "We're still talking about this?! Stop it!"
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