Is it sad that I feel like there's more chance of seeing actual yuri here than in Shinozaki-san?
I wonder if one thing holding Koboyashi back is a nagging fear that Tooru will return to her home.
I haven't read Shinozaki-san so wouldn't be able to tell you xD Kind of tired of the tsundere stereotype. She is kinda tsundere-ish right?
Anyway, so far it hasn't been shown anything from Kobayashi's side in regards to feelings, maybe only indifference. Besides that one time where she got drunk and stripped her, though that's due to her fetish. That's one thing I think is what hinders Tooru, cause she's dressing up like a maid and Kobayashi isn't seeing her as a person, or at least, not treating her normally. I don't know if you understand what I say. She's looking at her as an overgrown child of sorts I think, and not as an adult. That's my impression at least.
Gotta admit though, Kanna is seeming more and more like their kid. I wonder what will happen if Kanna refers to Kobayashi and Tooru as her parents xD Though I know that won't happen ever.