Why do forbidden topics in 3D look not only titillating but also aesthetically pleasing?

For me, one of the strongest visual scenes is the episode where the stepmother slowly and coldly educates her stepson after her husband's death. Everything is shot in soft light, smooth movements, almost balletic: she is not rude, but her voice is icy, and in that is such power. With each touch, he loses his will, and she gains it. It's exhilarating, but even more amazing is how beautifully power and submission can be conveyed, almost like in a theater. I have a question for you: why is it that the visual style in 3D makes even difficult scenes not repulsive, but rather alluring?

On https://18comix.org, I came across a story where a strict headmaster of a women's academy punishes “problem” students. Not just whipping and moaning - everything with deep aesthetics. The camera seems to caress every detail: sweat, a strand of hair, trembling fingers. There's a scene where the heroine with a gag in her teeth looks directly into the frame, and in that moment, you don't just get turned on, you feel the contact. I went to the site after the usual plots stopped attracting me - I wanted a story where every scene is like a painting. And that's exactly what I found: sexuality as art, not vulgar, but hypnotic and intense. And yes, since then I've even started drawing - inspired by this sensual absurdity.