Today is the day of the graduation exam at the Pussy and Anus Licking Training Center. The slaves' learning from licking the female instructors' pussies and anuses for a year will be put to the test. If the slaves do not pass the exam, they will be put in chastity belts again for a year, and their ejaculation will be controlled, and they will be treated as the female instructors' cunnilingus machines. The female instructors make the slaves lick their pussies and anuses, and write in a notebook whether the slaves are "licking gently, trying pussy juice, sliding their tongues deep into the pussy and anus, licking carefully," etc. In order to pass, the slaves continue to lick the female instructors' pussies and anuses more than usual. As the slaves move their tongues desperately, the female instructors experience more pleasure than usual, and exam day is the best day for the female instructors.