1) I have an affinity for Debussy, and I play it well. Also, it takes me very little time to master a particular piece of this composer, WITH ONE EXCEPTION!
2) I have been working on the OP's piece for almost 25 years. Why? Because, it has a level of intricate shading, far beyond the composer's technical abilities at the piano (he never performed it), and
3) The work tells a very personal and intricate story. Claude Debussy wrote this piece for his mistress (who later became his wife). He worked on it in stages, and the final autograph shows handwritten love notes in the margin.
4) In terms of modern popular music, this piece was the first number one single in the history of piano music. When this story made the rounds, this piece sold over 10,000 copies in six months, in Paris alone. Further, none of them could even remotely play it.
And, after Mrs. Debussy found out about all of this, she took a derringer and shot herself in the chest, and she lived!
So, the work needs to inhabit throughout, in my opinion, not only the concept of the sex, but also the sea (relating to the Isle of Jersey), where their affair took itself to the highest level.
The last seven measures of the piece are nothing more than a sexual climax. Scroll up to the Horowitz' recording and listen for yourself because that is the way he played it.
Therefore, in terms of the associated nuance of all of this, if any of you out there would like to share some ideas on the intricacies of all of this (regarding particular measures), then I would very much like to do this.