>>1547662I think I saw this recently...
Might have been in "Ore wa lolicon ja nai!"
Or "Takane no Hana wa Midaresaki" in only one chapter to make a point about his sister not being mature, as her wanting to prove her maturity was the plot of the chapter.
Though I'm not certain about any of these. So worst case, take this as a bump.
(Not too likely, but maybe "Watashi no Kouguchi-Sensei" too)