Mistress Roxana has taken out the best mare in her stable to ride on. She sits down on her slave's back and pushes her forward with determination. Now the slave mare torments herself, round and around to satisfy her mistress. But it's not so easy because Mistress Roxana always wants more and always wants to go further, while the strength of the slave continues to diminish. Mistress Roxana grabs the slave's hair and continues to drive her forward. Let's go, mare!