As part of my more recent "Peter Pan" commissioning phase, I commissioned =shadowoflight01 to draw this bust of Wendy Moira Angela Darling. And "bust" is certainly the right word, she's noticeably more developed here than in the Disney cartoon, though to a believeable level.
However IIRC, Wendy in the original novel was said to be almost 13 years old, so chances are she would've been developing a slight bosom already, and it certainly suits her usually motherly temperament towards her brothers, Peter, and the Lost Boys.
Part of my inspiration for this (and subsequent PP commissions) was seeing a previous commission pic that =shadowoflight01 had done for somebody else of Disney's version of Tinkerbell. The other part of my decision was because I had just recently re-watched the Disney film myself. It is a classic film, but having now read the original novel, I notice just how much Disney have truly screwed around with the Peter Pan mythos. (And most people actually know the Disney versions better than the original novel, from which it differs significantly).