Help with llm to craft prompts for me.

Hello everyone, i like to use llms to come up with prompts for me for a particular scene, it usually goes like this, I tell grok to give me 5 sdxl prompts for a scene of 2 children running though a beautiful anime fantasy medival town. It usually does a good job. Now I want to also do nsf w prompts, eg elf girl sitting on bed wearing various sexy outfits. When I tried this locally I find it hard to get the llm to properly expand and describe the scenes.