Sean Penn unaware of model daughter's nude photo spread

Actor Sean Penn was shocked when he found out his model daughter Dylan had bared all in a nude shoot for erotic photography magazine, Treats.

The 23-year-old daughter of the Oscar winner and ex-wife Robin Wright showed off her assets on the cover of the publication's April (14) issue, which features her leaning against a wall, cupping her breasts, with only a Fendi purse to cover the lower half of her body.

But in a new interview in Italian Vanity Fair's new issue, the model/actress admits she didn't give her parents a heads up before the racy photos went public.

She said, "They were a bit surprised because I didn't warn them. And my dad said, 'OK, you reached the limit. You better not go any further.' I learned my lesson."

Penn also divulges that she regrets baring all for the shoot, adding, "To be honest, if I could go back, I would not have taken that much clothing off. I was a little naive."