In the 1999 movie American Beauty, Jane, the daughter of the protagonist develops a happy friendship with a shy boy-next-door, Ricky. One evening Jane, played by Thora Birch, is up in her bedroom where she notices Ricky watching her from his his bedroom. In dead-pan and without so much as a nod of recognition she approaches her window where she slowly takes off her top revealing her bare breasts to Ricky.
Not a particularly notable scene, but when the scene was filmed Birch was only sixteen years old.
"[Thora Birch was] actually only 16 years old at the time she was filmed nude for a scene in American Beauty (1999). She told TV talk show host Craig Kilborn when she appeared on his show in 2002 that her parents didn't have a problem with her doing a nude scene, despite her being under age, and they encouraged her to go ahead and do it. They agreed that her character's nude scene was so important to the development of her character that they gave their approval."
source
My question then is, would you as a parent approve of your 16 year old daughter doing the same?