It feels like the punchlines are sometimes missing. From the description my expectation was "girls have a conversation that sounds lewd, and on the last page it reveals a more mundane and innocent interpretation". Vaguely along the lines of chapters 16, 21, and 22.
But for many chapters it seems like there is no reveal, and it really is just lewd conversations. I can be bad at reading between the lines, and it's very easy to lose things in translation too (something clearly didn't work in chapter 10, for example), but if chapters 14 and 17 were supposed to be anything other than exactly what they seemed like, I don't know what those anythings are. Yuu excepted in the case of 14, of course.