Justin Theroux Finally Acknowledges His 'Flopping Package' on 'The Leftovers'

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Kudos to Conan O'Brien for going there.

After much has been made about Justin Theroux appearing to go commando while filming jogging scenes for his HBO show The Leftovers -- even his co-star Liv Tyler has admitted to being distracted by his "large bulge" -- Theroux himself addressed all the hoopla when asked point-blank about it during his appearance on Conan Wednesday.

"This is embarrassing, but I don't know how else to ask you about this," Conan began. "Many women today on my staff came up to me and they were saying, ‘You have to ask Justin’ -- there's this scene where you’re jogging, and they say your package is quite apparent when you’re jogging in these sweatpants. And it’s I guess a thing women are talking about."

"You must address the flopping schlong," Andy Richter bluntly added.

NEWS: Liv Tyler 'Can't Help But Look' at Justin Theroux's 'Large Bulge'

According to Theroux, 43, wardrobe actually told him to wear two pairs of underwear for the second jogging scene, after the first jogging scene in the pilot caused quite the stir!

"I don't know how to answer this question," a clearly embarrassed Theroux said. "I didn't even know that was a thing ..."

Though Conan perhaps summed it up best.

"So what the women in my office are bugging me about is the result of you with like, three pairs of underwear on," he joked. "Good God!"

NEWS: Jennifer Aniston Can't Get Enough of Justin Theroux

Check out Conan offering Jennifer Aniston's man his "congratulations" in the video above, and watch his date night with his A--list fiancée at The Leftovers premiere in June in the video below!