Version 1 - not as deep as i'd like in from above/pov viewpoints, but serviceable. Will try and find some more training images for that angle.

Use ballsdporal as a trigger

And licking balls... if you want some balls licked.

Lying will give girl on top position (especially if combined with spread legs on the male)

Good idea to specify testicles in the prompt, as if things go right you ain't gonna be seeing much penis.