Is it normal that i pretend my girlfriend is a maid and force her to have sex

My girlfriend and I have a good relationship. She is of Russian descent but was born in America. Sometimes I like to pretend that she is a poor (and possibly illegal) Russian domestic servant who works for me (a rich American businessman), and I have her dress up in a maid outfit and call her Svetlana and show my power and authority by taking out an unloaded pistol from my pocket and pointing it at her head, forcing her to perform sexual acts on me. I also kiss her on the cheeks and lips and touch her breasts and she acts like she is being forced to take it and doesn't enjoy it. Being dominant and in complete control of the situation sexually excites me. I also like to punish her for doing naughty things (that I make up for the purpose of the role play) like spitting in my coffee and using the toilet in my private bathroom.