This is LORA, who makes the glans grow huge.

I responded to a request.

At the moment, Illustrious-XL seems to work best.

When using realistic or semi-realistic checkpoints, the image often gets adjusted to the thickness of a penis.

As a workaround, after creating an image with Illustrious-XL, use img2img with your preferred checkpoints and Denoise Strength: 0.5.