Uhhh.... author? It's not a trap if you DRAW THEM WITH BOOBS! A trap is a boy, who is physically still clearly a boy, but they have a thin frame and girly face that can be mistaken for a girl and possible little to not adams apple.
Drawing a girl, not showing the crotch, and calling it a guy is NOT HOW TRAPS WORK! And i'm not trying to involve bullshit gender politics here it's just how the trope works. Part of the point of traps is the comedy that they are guys but have such a feminine figure as it allows for some unique scenarios.
Besides a character with boobs and a dick is CLEARLY futa not trap but the writting for the chapter clearly implies trap rather than Futa so again this just did not work.
At this point I think the author is just trying to cradually cram in every fetish imaginable for fun but either they tried to blend fetishes here and failed or they just did not understand the difference between trap and futa.
P.S. I may know about this but I don't actually like traps or Futa. I've just been an anime fan on the internet long enough to learn about things even if I didn't want to.