My cuckold relationship went to another level

I wanted to write about it later. The fact of being cuck didn't change anything, but it changed the way I am one. The guy who was reading my story knew that my wife is very slutty and only accepts me if she lets her be free and thus she had sex with many men. That's how much time passed until a man marked us and marked us for always. My wife has been having hot days for 6 months, got up one morning and ended up having sex with a 45-year-old man. She told him she was married, that I was cuck and she accepted it like that. That man, who is called Agustín, became our fixed lover and started showing his dominant personality every day. Until three months ago, they went out at night and when he came back at dawn, he woke me up to tell me something. Agustín wanted to turn us both into his slaves, as that was his life - he was a natural-born master. My wife told me she wanted me to meet him on Sunday afternoon. I wasn't convinced but my wife accepted it. On Sunday at 5 pm, Agustín arrived, he was tall, good-looking and grey-haired, my wife opened the door and I greeted him, sat down in the armchair, my wife next to me and I facing him. While we were having something to drink, we talked and suddenly he spoke with authority. He told your wife what she wanted and asked if you would accept it or not. The truth is that I don't know what you're referring to. Literally, I'm going to be the owner of you both, sexually at first and then you will hand over your life voluntarily, that's always how it is. My wife was thrilled. From that day on, I became a slave along with my wife.