Panel 1: In case you can't read hiragana for some reason, Ninjette is saying "ikuzo!" ("Let's go!", more or less.) BTW, note that the task learning the phonetic characters of hiragana and katakana is ridiculously easy compared to all the other, far more more formidable challenges of the Japanese language. (Then again, as a manga/anime fan who predated the modern era's translation boom, I had to learn at least a smattering of Japanese to navigate all the untranslated material.)
Panel 3: "Prying pestling" is an especially strong Demonlupine coining, IMHO; have to remember "pestling" in particular for future usage.
And that's it for the Ninjette/ Demonwolf bathroom scene from this anthology-format first half of Empowered vol. 8, folks. Tomorrow, we abruptly cut away to a very different setting for another discussion re: the topic of Hell, however figuratively.