The Red Dragon Dungeon #3: Needle Play for the Submissive

After being introduced to the fact that her Psychology professor is also a dominant with his own dungeon, Lucy makes it a point to visit him daily. After talking back to him in class, he must decide on a punishment suitable. After nipple clamps, whipping, and spankings, the only thing good enough to repay her lack of submission is needle play and a rough pounding.