This lora makes a smashcut to the person jerking off. You can mix with this Wan 2.1 penis lora or Taz's penis lora for better dick and balls.

It can also do handjobs or have a person start stroking without the jumpcut.

A good copy paste prompt...

The video begins with a shot of a person, the video then jumpcuts to the same person furiously masturbating at the same location wearing the same clothing, they are rapidly stroking their penis and sliding hand up and down the penis shaft while making an orgasm face, they ejaculate and white liquid cum squirts from the tip of their penis.