Not only does the Wonder Woman movie not sexualize Diana, it also doesn’t sexualize Steve. Compared to the female gaze fan service provided in the second Thor movie, where the camera lovingly pans up Chris Hemworth’s water-beaded chest as he bathes himself, a moment that was met with a theater-wide sigh of feminine appreciation (and then a giggle), Steve is shown from just the shoulders up for much of the scene. Even when you are shown his whole body, it is shot from a distance. There are no loving close-ups of his Adonis belt or his flexing biceps.
When Diana sees him, she asks if he is a typical example of his sex, and while Steve automatically thinks of his penis, she isn’t thinking that at all. The camera shows Steve the way Diana sees him, which is as a man, but not as a sexual object.