I have added the bugs and suggestions to my list, what do you mean with reaction to the futa that lies?
I've made her cum (huge dick size) by being the "TOP" in the femdom class. When you get back to class, she lies and says you came right away and failed.
I think that's in character for her to lie about (I mean unless the whole "yes daddy" is her REALLY submitting totally and would properly tell the truth, or if you want take as her lying to keep him to herself), and the MC says nothing, there is no reaction to her straight up lying.