@Hootanic
She's how old and doesn't know about these?
Wow, this is a very dangerous way to limit yourself with the prequel, especially if she already used a shower head to masturbate in the prequel. Maybe the prequel and this will at some point divert and follow different continuities, cause in the continuity of this manga she never ever had sex with any other man than her husband, which limits the range of stories he could write already, or rather take a blue-balling manga like this and make it even more so by applying more limitations.
This chapter kind of feels like a waste of time really. I could find some value in the previous, but this one doesn't really move the plot anywhere. At most makes Aki less useful to her in a way.