Doctor, Kuri-taro has been feeling unwell since yesterday... Oh, that's terrible. Well then, let me take a look at your backside right away. Hmm, Kuri-taro, do you feel any pain here? No, it's kind of a strange feeling. Oh, a strange feeling... Then how about here? Yes, that feels good... feels good... Doctor, Kuri-taro is getting rock hard... Huh? Rock hard? I mean my cock! What, your cock? Doctor, I can't hold back anymore! What? What is it? Dad, stop it! No, it's already rock hard, so I can't help it, Doctor, hehehe...