Jeanne, as much as she liked how things were going, would readily admit that she missed one thing about her life as Jaune: his penis. Even though she'd become comfortable as a girl, thanks to using the Book, she was still aware of the emptiness between her legs, the lack of a familiar weight.
For a moment, she thought about simply undoing the changes to herself, and becoming Jaune again, but she discarded that idea. She was far happier as Jeanne than as Jaune. Still... maybe she could get that part of Jaune back without sacrificing her life as Jeanne? But this would need to be a fairly big change, because being the only futa in the world would cause concern.
While the others present continued to give Ruby grief for her accident with her food, Jeanne began making a sizeable entry into the Book.
"In addition to male and female, there is a third sex that humans and Faunus may be; futanari, female in most aspects, but bearing a functional penis and testicles in addition to a fully functional vagina. The sex distribution is approximately equal between males, females, and futanari. Futanari retain the large breasts described in previous entries for females, but also have large male genitals."
Jeanne paused, then added, "The average size of male genitals on Remnant is between 8 to 12 inches long for the penis, and testicles the size of golf balls. Futanari tend toward the larger end of this scale."
Finally, she added one last line. "I was born a futanari." With that, she closed the book. Almost immediately, she felt the familiar weight between her legs, although it was a bit more than she remembered. Seeing as she'd given all men on Remnant a boost, it wasn't surprising. She felt a surprising amount of comfort knowing that she could choose to be the guy or the girl in a relationship.
Then she looked around the cafeteria, and the impact of what she'd just written became apparent. Since she'd written that futanari were now an equal distribution along with males and females, that obviously meant that some guys would change into futas, as well as some girls.
Then Jeanne looked at her seven closest friends. Had any of them changed?