Different angles for a woman performing oral sex on a man. It has a tendency to produce auto-erotica, even without prompting for it, given a cooperating angle.

The example images were produced by running the captions I used for training, which probably produces the most adherent results with respect to the concept, though that doesn't imply quality range so creativity will usually produce better quality.

I used 44 images in various poses, including half of those being just the genitals alone, again with different angles and surface area of the host including foreskin and various coverage of moistness.