Two sisters and their niece. SeXStoRY

This is a story about my sexual "relationship" with 2 s****rs and their niece. Upfront let me tell you all 3 are or were at one time "working girls" working in the "worlds oldest profession". Their names have been changed in the story. Mary, the oldest of the s****rs is a BBW, with meaty pussy lips, most often keeps it shaved. Her pussy lips grip and wrap around a guys cock keeping it fully engulfed while she is being fucked. She has the ability to to use her pussy to control when a man cums. She only allows certain men to cum in her, I am one of 2 and calls cumming in her pussy her favorite part of sex because she also has an explosive orgasm at the same time. She gives an incredible blow job, but prefers a man to cum in her pussy. Mary is currently 41 and has adult c***dren. She is now a BBW MILF. I have been having sex with her for the last 10 years at least, on and off. Tonya is the younger of the s****rs. She was the one I first met and had sex with when I first moved to the city I now live in. She is not as large as Mary. Her pussy is not as meaty, and she keeps it hairy but trimmed. She has a bubble but with what men used to refer to as good looking birthing hips on a woman. She is good to fuck and loves cum in her pussy as much as Mary. The best position to fuck her in is from behind. Tonya has not been a "working girl" for some time now. She has genetic health problems that often cause complications and side affects preventing her from having sex. I was having sex a lot longer with Tonya than Mary until I met he s****r. Stacy is Mary's and Tonya's niece. Very skinny with a hairy soft pussy. She is a good fuck when you can't find Mary or Tonya. She very slender and very flexible. If you can handle the position she will fuck you in it. I met Tonya when she was out working on the street one night. I knew what to look for and what to say. We went back to her place, had great sex. This went on for some time until once she was not available on a date we had set up, but her s****r Mary was there and asked if I would date her instead. I did and it was incredible. I had never fucked a BBW or a fat woman before. After that I started fucking Mary more than I did Tonya. Tonya did not mind. One day I asked Mary if she knew of other girls I could fuck when she was not able to or available to have sex with me. She told me about Stacey her niece. She put me in touch with Stacey. I met Stacey at Mary's place. We had a hot fuck session which was great. For a time Stacey had moved away and Tonya was unavailable. So between the 3 I had no one but Mary. which was fine with me, as she is the best of all 3. One rule they have always had is they do not have sex with each other. But they have had sex with the same man in the same room, just no contact with one another. There was this one time when I was to fuck Mary and we wanted to video record it. We asked Tonya to help with the recording. There were were Mary and I are fucking and Tonya is recording it with the camera. Mary and I look over and Tonya has her pants down and she is fingering her pussy. Mary and I were not done yet, or rather I had not cum yet, Mary was preventing me from cumming until she had had all of her small orgasm's before her big one when I came in her. Mary asked Tonya if she wanted me to fuck her. So we forgot all about recording anything and Tonya took Mary's place and I fucked and came in her instead. Today, after I post this story I am picking Mary up for some hot sex. She has not had sex in a week and has not had a man cum in her in 2 weeks. She is hot and ready for my cock and cum today.