FLUX.2 Klein 9B workflow for highly accurate genital reference transfer between two images.

This workflow is designed to transfer the penis and scrotum from a reference image onto a selected adult male model, while preserving the identity, face, body, pose, lighting and background of the base image as closely as possible. It works especially well when the base model is wearing briefs, a thong or similar underwear that needs to be replaced during the edit.

The workflow uses Image 1 as the identity/scene lock and Image 2 as the genital reference, with the goal of preserving details such as penis length and thickness, hanging angle, glans appearance, foreskin, veins, scrotum size, shape and natural folds instead of generating generic anatomy.

For best results, Image 2 should be cropped closely around the penis + scrotum, with only a small amount of the surrounding pubic area and upper thighs visible. The included workflow is configured around this approach.

Credit: This workflow is based on the approach used in flux2Klein9bUncensoredImageEdit_v10.json. Many thanks to the creator of that workflow for providing the original solution and inspiration.

The resulting image can also be used as a starting/reference frame for WAN workflows, making it useful as a preprocessing step before generating video while keeping the desired anatomy and character appearance.

Intended for adult 18+ content only.