Prompt

The proportions of the Japanese male model's genitals look unnatural. Following the initial prompt, please realistically and proportionately depict an erect 20cm penis with a large, tanned glans and testicles. Also, modify the image to capture the moment of ejaculation, showing semen spurting out vigorously. An upright penis is preferred./ Revised to depict the lover behind grasping the main model's penis with their right hand, with the penis wet with semen./ Revised to show the lover behind stripped of their underwear and fully naked.