My mother asked me to marry her friend, but I do not know if I should comply.?

This is the situation. My mother has been a successful prostitute in the DC area for the past 20 years. During the 20 years of business, she has made plenty friends in the same field as she works. Well, I have become rather successful in my chosen profession making about 200k-350K per year for the past three years. The variance is huge because it is based on the bonus. Anyways, I tend to take care my mother whenever I am in the D.C. area. I purchased her a nice little house and a car so she can get around. I came to visit my mother about a week ago and noticed she had a black eye. I asked her how did that happen and at first she did not want to tell me because of my temper. Finally she told me though after I threatened to kick her out of the house I purchased for her. She stated her pimp's bottom ***** had punched her on her arm for not making enough money. Well, my mother went to complain to the pimp and he punched her in her face and told her to get back to work. Luckily for him, my mother would not disclose his name or location. I told my mom that she needs to get out of the business, and as long as I have my job, i would continue to help support her as long as she got a real job. She told me it is hard to find a real job in this economy but she would try on the stipulation that I married her friend who is a 53 year old prostitute. My mother told me she would only get out of the business if her friend got out and the only way her friend would get out is if she marreid me. I guess I made a great first impression on her that first time I met her about 2 years ago and she has consistently fantasized about me since our first night. Anyways, I really do not want to get married to my mother's friend, but I do want my mother to get out of selling her body for a no good pimp and just live a normal life. This had been what I have always wanted for her since I was a young child. Since I am in the position to do it, I want to help but I just do not know if I should marry he friend. I am sure she can do amazing things in bed, but I am only 26 an do not feel as though I am ready to settle down, espicially to someone I am not in love with. This is so hard. What should I do. I just do not want my mother to be treated like some dirty skank anymore. Thanks.