Blind threesome between 2 couples

First with my wife , them with his wife. We had about a year since we get married, our good friends Alan and Crismar were a couple with 6 month of relationship,  
My wife, a Latin girl gorgeous body, looked like Kim Kardashian. Beautiful boobs, tight an nice ass.
We use to share a lot with our friends Alan and Crismar. Since I was introduced to crismar I had a sexual crush with her, she looked like a Victoria secret model, tall thin woman, small but tasty breast. Hot shaped body.
One the four of us, decided to take a short vacation together to a nearby city, we stayed in a nice lodge, the first night we were drinking and I realized that my friend Alan had also a crush with my wife Carmen, and I had a naughty idea.
I called alan apart while the girls were in the pool, i tod him, ill propose you this, as i know youd like to have "fun" with Carmen, tonight, you will give a sleeping pill to crismar, Im gonna start making love to carmen but im going to tie her hands and cover her eyes and im going to star fucking her doggie style, while loud music souns in the room, them you are going to enter the room,  and without talking, you are going to continue fucking Carmen until you finish, you can grab her body her ass, touch her boobs, just enjoy her as you wish.. You can fuck her ass if you want. But...
We are going to do the same the following night with crismar.
So we did that night as I said, Alan enjoyed carmen so much that night and she didn't realized at all, she was so exited that night, the next night was my chance to fuck crismar his girlfriend.
So, I had the chance to fuck this model, what a great pussy she have. I touch her every where I she didn't realized it was me.
We had a great bonding experience. Jeje