Anal sex for the pleasure of our mistress

we Work as a domestic in the home of a woman millionaire, and with very particular tastes. We take care not only of the cleaning of the house, but also to satisfy all her requests. To be more precise, we’re his sex slaves. And when she is not with my colleague, I have to make her oral sex. Sometimes he asks me even to crawl on the floor while I tell her dirty things. But today I wanted to have a participation in more passive, he asked the other guy and me to fuck in front of her. We had to do what he wanted, even fuck your ass. I have never had sex in the ass before now, and then I saw myself in the obligation due to his requests.