Jeremy Renner was really excited about flying from London to L.A. recently -- after he accidentally swallowed Viagra!
"A lot of times when I'm on the plane, I have to sleep. And I'm not a good sleeper on the plane," the actor revealed on "Jimmy Kimmel Live!" earlier this week.
Renner, 41, says he thought one of his friends was giving him some Ambien ... but that wasn't the case.
"So I took a little sleeping pill, popped it and realized nothing's happening -- but something else was happening," Renner said, laughing.
"I realized very quickly that the 'A' was actually a little 'V' on the pill," he added. "Not only did I not sleep the entire flight, but there was. . . 'camping' . . . happening!"
The star of the upcoming "Bourne Legacy" says that the flight attendants on board were "in on the joke," but added that he was "really embarrassed" by the entire fiasco.
Find out what made the incident even worse in the video above!
