The mistress Miss Medea is prepared. After the previous experiences with Cosmo as an anal slave, she has learned. She knows that she has no easy task ahead and that the slave has a very sensitive butt. But her goal is set. The ass must be trained. The slave wears a penis cage, from which he will not be released even for a second. Yara licks him gently through the bars while Medea prepares the butt hole with her finger. But the patience of the mistress is quickly exhausted. She starts to insert the dildo. When she has dipped the tip, the protest already starts. Cosmo whines and protests as loud as he can. Again he is stretched open with her fingers while he is allowed to lick Yara's butt hole. But then it's over with pampering program. Miss Medea gets going. Unperturbed by Cosmo's complaining she penetrates him deeply. Yara is instructed to hold him tight, which she does with pleasure. Cosmo tries to resist and no longer obeys instructions. But the mistress gets her way. Cosmo tries to escape on the couch and crawls further forward. Miss Medea pursues him until he finally lies on his belly and can no longer avoid. She gives him 10 strong pushes and then lets go of him.