Since her boyfriend loves breasts and asks for titty fucks every day, she has been trying out various titty fuck techniques to keep him from getting bored and keep him happy. In order to further hone her skills, after breaking up with her boyfriend, she started working at a big-boob brothel, where she has mastered a whopping 48 different types of titty fuck. In this work, she not only shows the techniques, but also demonstrates them in action, right up to the titty fuck climax. This is the new Reiwa era's anatomy of titty fucking!