The loli appearance is 100% intentiontal on the author's part if you go see how much porn they draw of Futaba.
Facials, giving blowjobs, doggystyle, missionary, (a bit of yuri NTR too).
Edit:And after writing this comment, I went to check for any new posts and he has started drawing implied fat guy NTR now...
Sakurai getting doggystyled by a ambiguous fat guy and Futaba cowgirl style naked on top of some fat person licking them.
Shiromanta WTF dude?