London, July 3 :  Actress Blake Lively was embarrassed when her young nephew accidentally caught her naked.

The 24-year-old was getting ready for her appearance on "The Late Show With David Letterman" last week when the four-year-old came into her room.

"He was tattling on his older brother and he comes running in and I said, 'No, no, no, don't come in, I'm naked...' It was from behind and I was covering myself from the front and he walks in and it was a little too late. He just sees me and turns beet red and then, like, folds over laughing," contactmusic.com quoted Lively as saying.

"I didn't know if I was, like, embarrassed or, like, flattered... He couldn't get it together," she added.

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