Story was cool but yeah Gemini isn't the best tool for this kind of story I'm afraid. You should try to use something like Stable diffusion with the right model, that way it will let you have proper NSFW scenes and a less generic "AI" aesthetic.
Decent story, but bad prompting and a low quality AI model for your art.
As is, this isn't great.
This is the opposite problem that most AI art users have. Most of the time the problem is they invest in a perfectly fine model, but lack the writing talent to make anything that isn't trash.
You have some potential. Invest in a better model that will let you do some real sex scenes and you might make some good stuff in the future.
Love your deviantart stories, especially Always a Bridesmaid. Any chance you might delve into something.. spicier? Perhaps even with characters who don't have a total bottom transition?