This is part of a straight shota artist collab with a 210cm tall Okuu. So I'd say that this classifies as such.
Huh? Okuu-chan, what are you doing?From who?Unyu?
I heard that if I do this, males would get better.Palace of the Earth Spirits, in the dressing room of the heated poolAh, you're awake.Gosh... you almost drowned, I was so worried.Ah... ahhh, what? Where am I?Koishi-sama.