DorthyM,
First let me say, for someone that does a job that many would judge, you sure are judgmental. Now, I'm trying hard not to disrespect your opinion, however, I found it extremely offensive. First, off, the tone of your original post came off bitchy and judgmental, which is exactly the type of attitude men that like to be cuckold and humiliated go for; hence your many requests.
Second, men have a P-spot sort of like our G-spot. Some women enjoy anal sex, I don't. Some men enjoy receiving anal sex, that doesn't make him gay. If a man is attracted to women, love to DATY, and could never see themselves kissing a man or in a relationship with a man, what should he do if he discovers he has the most intense and enjoyable orgasms when his P-spot is stimulated?
Some men like to be humiliated and taken. Taking their ass and penetrating them fills a need. If you don't want to fill that need, then don't.
You realize you can politely decline activities without complaining, criticizing and judging the client or their request.
One of my favorite things about my job is that men can open up to me and share their deepest fantasies no matter how different or bizarre it may seem without fear of me judging them. I may not be open to participating in filling their desire, but I would never berate them for having or confessing them.
Many men long for things (maybe as simple as a blow job) that their wife thinks is gross or wrong. Some of these men go without, other seek "professional help" - this is where we can help.