A technique that implements the Sexy: Girl on Girl Technique. A forbidden technique that confuses and excites women by changing into two naked men. Unlike when changing into girls, other things are vital besides proportions, like the selection and combination of the men one transforms into and how they pose. By being well acquainted with the person the technique is targeted to and adjusting the transformation accordingly, one can deliver an even greater impact.
The word the databook uses to decribe women is 婦女子 (fujoshi, woman). This word is pronounced the same as 腐女子 (rotten girl), a slang word for a girl who is a great fan of comics featuring male homo-eroticism (a yaoi fangirl).
This technique does not appear in the anime.
In the English manga, only the silhouette of this technique is visible. Sai still points out that the two figures are him and Sasuke.