Swimming champ Ryan Lochte PEED IN THE POOL AT THE OLYMPICS -- seriously ... he just admitted to it on live radio.
Ryan was on the phone with Ryan Seacrest this morning, when Seacrest asked if swimmers ever pee in the pool -- Ryan replied, "Of course. We always do."
When asked if he ever peed during one of the races in London, Ryan said, "Not during the races, but I sure did before in warm-up."
According to Lochte, "There's something about getting into chlorine water that you just automatically go."