If anyone's interested, she's doing a series on Pixiv writing an exchange diary with herself (JP only).
https://comic.pixiv.net/works/2308

Just the next 22p chapter then this 10p omake left - probably be done by the end of November.

As far as I understand it, the note on this page is wrong. リバ (riba) comes from リバーシブル (reversible), not "liberty"... anyway, minor quibble!

Oops.
Welp, whoever wrote the 'Lesbian slang terms' article on Wikipedia wasn't sure either ^^
http://puu.sh/rJcxM/5873615cf1.png