An Unexpected Dinner Party Revelation

We're a mwc. We're in 50's. She's a BBW very attractive, 42DD breasts and piercing blue eyes. I'm average build for my age. Both of still working and have a nice home, doing well. Over the last year I had some problems in the bedroom and our sex life was suffering. I was in our den one evening, thought I was alone and was on one of those sex lines. I had been using them for a while. I was talking to my MISTRESS on the phone, didn't realize my wife was in the hallway. We were discussing Cross dressing, strap on play, humiliation and other things. When we finished I hung up and got ready to go upstairs and there she was. I was so embarrassed. I immediately apologized and tried to explain. She said she understood and it was okay. At least I wasn't seeing someone else. She could live with it. I still felt bad and told her I would stop. A few weeks later she told me invited some of friends from job over for dinner. I said that would be fine. It was a Saturday afternoon and I was doing the yard work when they arrived. I knew them it was Tina and Pam. I finished up and got in the shower. When I got out , my wife was standing there in a black lace bra, panties, and garter belt and hose. She said baby I'm going to your Mistress. Put on the outfit I laid out for you!! I looked on the bed and saw a white bra , cotton panties and some thigh hi hose. I begged her not to do this in front her friends, but she screamed Do It!! I did. We walked into the living room and Pam and Tina were dressed pretty much the same as my wife. They said very nice 😅. My wife we've been talking about this and planning it for weeks, you're going to belong to us. I was so humiliated. She told me rub my dick thru my panties while they watched. I did and they saw the wet spot from my precum. They all laughed. Then she told me to get on my knees and start licking pussy. They all took off their panties. She said start with our guests. I licked Tina first , she squirted all over my face. Then Pam. She covered me too. Then I licked my wife, she grabbed my head and fucked my mouth and cum several times. Then they all said good what good slut boi I was. My wife told me to get up and go to the bedroom. We all went together. She pulled down my panties and spread my legs. Now she said, Mistress is going to share you with her friends and you're going to take it. Our guests will go first. Tina put on a strap on and lubed up my ass. She put it inside me. It hurt and burnt as she stretched me out. It was huge. It was thick and at least 9 inches. I was biting lip and my eyes were watering. After a few minutes I started to get used to it. She grabbed my hips and shoved her cock deeper into me and fucked me for over 30 minutes. When she finished Pam put it on , more lube and fucked me for about 20 minutes. Then my wife put it on , more lube , and said Mistress is going to really show you what you've been wanting, you belong to HER. She pounded me with out mercy while they watched. All of them laughing and saying what a good boi I was. She rode my ass my ass alternating between fast and slow for almost an hour. When she finished I was exhausted and sore. I could barely move. My ass was stretched open and sticky from lube. She told me to get up and go to the living room. They all sat down. Now jack off while we watch. I did and they all giggled. After I cum in my hand, she told me to lick my hands and fingers clean. I did. After that she said put your panties back on and fix us a drink and dinner. I served them drinks and fixed dinner. We ate and had a few drinks. They asked me how I felt. I told them I had never been so embarrassed or humiliated in my life. They all smiled. My said good, we're you're new Mistress'es and you're going to be getting a lot of this. We're going to use you when we want to. What do you think about that? I thought for a minute and got on my knees and said Yes MISTRESS. I'm loving my life style🔥