Idk man as I said I think its just weird to see how a grown ass man draws to kids making out. And how is it more realistic?
Intimacy is important part of any relationship, and it wasn't drawn like porn, it was realistic and awkward depiction of teenagers making out. Seriously, it's dumb point. You think only kids can write fiction about kids making out? And that they should stop once they reach adulthood? That adults should just pretend kids don't have sexual urges, and just close their eyes when depicting horny teenagers with "fade to black"? Why not use fade to black every time someone is killed on manga pages too? You don't need to see someone dying and suffering in their last moments, just their dead body afterwards. Hell, there are stories where kids murder each other. How is making out somehow worse to depict?
It's just nonsensical and harmful censoring of fiction. You can depict murder, torture or rape in your story, if it's important part of it, and as long as you treat it with proper care no one should say anything against you. Why shouldn't Norio draw kids making out, when that awkward and confused process is important to understand their current relationship status, and when it's not drawn as pointlessly titillating?
You offer nothing as argument against it except "it's gross", which is utterly worthless as critique of art or writing.
... I wonder if Anna will want her turn to touch "the thing" in the return...
