I didn't found a good lora for FLUX with a simple pov pose from a men, masturbate on womans face. You can add semen or cum.

Sample:

"penisonface. A man's hand is visible in the bottom right corner of the image with a huge erected penis. White liquid like cum floating from penis. cum string from penis onto face. white liquid like cum on womans face, foreskin, cheek, eyes, mouth."