A concept lora for Anima. Stealth Sex is a very broad term, so it comes with multiple variations. The main tag is "stelathh sex", you should use it for every variation.

Then, there is the "oblivious" tag. Prompt the oblivious person(s) in the image with natural language. (one boy is oblivious, oblivious boy has... etc.)

This one is a hit and miss. Sometimes AI confuses the roles. Describe the oblivious person in more detail, or just generate another one, reducing the weight might also work.

Another variation is sex behind curtain. Use these tags: "curtain, sex behind curtain, silhouette on curtain, silhouette".

Another variation, under table. Just add "under table" as a suffix. (example: fellatio under table)

And lastly, there is "implied sex" tag. I guess it's for the images where the boy is invisible.

This lora respects style loras which is very nice.