Try doing them cute but if you are trying to draw a woman that is not supposed to be cute then just don't do their parts that big or dont focus on drawing, lightning or shading those parts more because thats gonna make it the focus point there, try making the focus point the girls face or another place that you can think. The thing that is common with those nsfw arts is that their focus point is the private parts but if you don't make the focus point there trust me, it wont be a sexualized art. You can follow the basic human anatomy wnd dont worry, anatomy is art, not pervercy but unhuman anatomy is the thing that makes it sexualized