Now this is based on actual photography and pictures that were taken as the movie tells us at the end. But it also is a story about forbidden things. Forbidden love, forbidden pleasures, forbidden photos and positions. Who is being hurt in all this? Who needs saving though? This is something that the movie is not really making much of a point.
For better or worse, there is quite the focus on the nudity (no pun intended) and the passion our main character seeks to get pleasure. You can interpret things and read some stuff I reckon, on the other hand maybe the one scene where a not erect penis is shown might be all the answer you (and she) need. Just saying