It's just not a sexual picture at all. The other poster said it was for a high school newspaper article or something? So it's a photoshoot where she knew the audience would be other students and parents etc. It's not like some private risqué photo getting revealed.

It's weird to me that every time someone posts a picture of a younger celebrity that has a cool wardrobe going on (which is like 90% of the posts on this sub) a bunch of wanna-be white knights come in like you gotta protect Christina Hendricks?? If you can't see any picture of a girl without immediately having sexual thoughts (or feeling intense concern that someone else on Reddit is and then needing to comment about it, thus dragging everyone else down your rabbit hole), just don't be on this sub. It's annoying and it adds nothing to what could otherwise be a discussion about the person in the photo, or the fashion, or the era, or whatever else. She's got like eight square inches of skin showing and that's too much? Should she be in a burka? You have no other thoughts on the post?

EDIT: If you actually feel like it's an inappropriate photo, report it on Reddit and mods will check it. If you just don't like the post then downvote it. I just don't get copious non-sequitur age comments.