Female Instructor Puts on Slave Chastity Belt and Uses It as an Anal Licking Machine to Enjoy Masturbation Only Her

Female instructor at Pussy and Anus Licking Training Center ties slave under a chair and makes him lick her anus, saying, "Now, practice your licking service. You only need to lick my anus, not my pussy. If you can lick my anus well, I'll take off your chastity belt and let you jerk off for the first time in a long time, hehehe." Slave has been stoped from jerking off for months by the chastity belt, so desperately licks her anus. Female instructor swallows juice and reads while making slave lick her anus. Female instructor gradually gets excited, and while making slave lick her anus, she starts masturbating, and finally inserts a dildo into her pussy. When female instructor reaches her own orgasm, she says to slave, "Did my anus taste good? Thank you for helping me masturbate, hahaha, but you didn't lick well, so your jerk off will be postponed, hahaha." From the very beginning, female instructor only uses slave as a licking machine and has no intention of allowing him to jerk off