Blake Lively - Naked Blake Lively Caught Out By Curious Nephew

The Gossip Girl star was getting ready for her appearance on The Late Show With David Letterman last week (ends29Jun12) when the four year old she was babysitting burst in on her.

She explains, "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.

"I didn't know if I was, like, embarrassed or, like, flattered... He couldn't get it together. And then later he came back again and he wanted me to throw him on the bed... and he's pulling open the door and I said, 'I can't, I'm naked again,' and he goes, 'Can I see, can I see?' He's four. That's not OK.

"I felt good about myself but when a four year old is laughing at you, you think, 'Oh, am I like the flabby aunt that's kissing him all the time?' He says he doesn't wanna hang out with me or his momma, because he says I try to kiss him too much... (But) he has been much nicer to me ever since. He's always ignored me before that and my sister thinks I actually just like planned that... I'm gonna have to pay for his therapy."