I mean, there are instances of groping in this series. These vary from "honest" to "hilarious", sometimes within the same scene. I don't think there's a single instance where it's anywhere near "gratuitous".
True, but even those are more about the interaction between the characters than titillating the readers. I mean, compare those instances to, like, anything from Hinohara Fuki. Hino-san no Baka has the characters being lewd, but the point of the story is about how their relationship involves those things, and the art is drawn in a way that minimizes the reader's titillation at those events.
Like, sure, we see Hino's hand touch Koguma's butt, and we see Kogu reacting to it, but there's no "nyu" sound effect, there's no generous close up of Hino's butt as the fingers dig into the flesh.
And what I was really talking about there was the way the CPR scene could have involved "chest compressions" but didn't go there. Because the point is to tell a story that happens to be teens, who are often by their nature horny, not to sexualize characters in order to gratify the reader sexually.