Works for vaginal and mostly dildos. Cucumber should work too I guess.

used 550+ Pics so 0.6-0.8 works fine

Prompts that worked for me:

the image shows one girl spreading her legs. she is inserting a dildo into her pussy. her pussy is visible and her legs apart. a photograph of a woman. her legs are spread apart, and she is inserting a large dildo into her shaved vulva with her hand.

 she is sitting on a bed / bench / chair..... she is moaning and looking at viewer.