I met my 2nd and current wife Anna in 1999 in the Philippines. We got married in the USA and then after a few months we went back to the Philippines to visit my wifes family and have another ceremony. When we got married it was with the understanding that we would live a swinging lifestyle. She previously worked as a bargirl in the Philippines and had partied in groups so it was nothing unusual to her. My wife would sometimes try to play tricks on me but she never fooled me. She tried fooling me by blindfolding me during a sex session and then tried to sneek one of her girlfriends into the room and take over to see if I noticed. I would always guess it wasn't her within a minute or so. She always said one day she would fool me. When we took the trip to the Philippines we flew into Manila and then got picked up at the airport by my wifes brother. We settled in to a room at my wifes brothers house that had 6 small bedrooms. These were small bedrooms about 10 by 10 foot so it wasn't a huge house. We had a few days before we were to go to another island provence. After a couple days my wife went out shopping for the day. I was sitting on the front balcony of the house doing some work on my computer. I happened to look up and looked down the street and saw my wife talking with another woman who looked just like my wife. I knew this was Anna's twin sister Sylvia who I had not met yet. I went back in the house and when my wife came in she went straight to the bathroom. I expected her sister would walk in the door but she didn't. This is when I knew something was up. I realized they were trying to fool me. I wasn't sure if they had already made the switch. I went to the bathroom and knocked on the door. My wife (or sister in law) called out "taking shower". I got my shaving kit and went back to the bathroom and knocked again on the door. This time the shower was off and she peeked though a crack in the door and said "moment". She was wearing a bathrobe and seemed to let her hair hang in front of her face. She gathered her bags and went straight toward the bedroom. Her back was to me when she stopped in front of two bedroom doors and was temporarily confused about which one to go in. I quickly shaved and then went back to the bedroom. I opened the bedroom door and there she was just starting to put on her panties. She grabbed the bathrobe to cover up. She seemed flustered that I saw her naked. This is when I was 100 percent sure she wasn't my wife. I decided to see how far my wife told her to go. I told her that I needed my bathrobe and proceeded to take my clothes off. She was now at a small mirror doing her makeup. I went over to her and started massaging her shoulders. She momentarily tensed up and then relaxed. I noticed her hair was a little longer than my wifes. She said "take shower" (My wife would have said "go take a shower sweety" and would not speak in shortened sentences) I said "in a little bit". I then stood in front of her and opened my robe. She was now facing a hard cock and she shut her eyes and looked down. I said "what's a matter honey? You normally like this" She said "take shower" I said "suck it for a little bit" I held her head and rubbed my cock on her lips. She finally opened up and sucked the head for about 10 seconds. Then she said "take shower" I went and took a quick shower and then went back to the bedroom. She was fully dressed in a blouse and short skirt. I undressed her and laid her on the bed. Then gave her oral to orgasm and then I fucked her. Rested 10 minutes and fucked her again. All the while she basically just stayed silent and submissive to any position I wanted her in. This was really different than my wife who usually gets on top for half the time. I started to notice a lot of small things that were different from my wife but I never let on that I knew. She did pump her hips really similar to my wife and went into a frenzy of hip pumping when I announced I was ready to cum. We then took another quick shower and then went out to eat. At dinner I told her that something was different about her and she was acting really shy. We then went to a shop and I bought her a mini skirt and told her to wear it with no panties. We then went to a dance club where we drank and danced and I fingered her on the dance foor. After a few hours we went back to the house and started to fuck again. That is when my wife came in the bedroom and said "We fooled you. I switched with my sister and you didn't notice" I pretended to be shocked and said "Oh my gosh, you sure did, you two look so much alike". A few days later we went to the provence and the village that most of my wife's family is from. We had the ceremony for the benefit of my wife's family. That evening I spent the night with my wife and her sister and one of their cousins (Maria). A few days later we went to Puerta Galera on Mindoro island and chartered a sailboat. I was the only guy on the boat along with my wife, my sister in law, and cousin's Maria, Tina and Reyna. With just me and 5 women for a week this ended up being the best week in my entire life so far. We were on the boat for a week and went to Boracay for a few days. This is a popular resort island with really nice beaches. I taught all the girls basic sailing. Sylvia and Maria spent a lot of time in a 69 much to my enjoyment. Tina had a boyfriend and didn't want to participate sexually at first. Then she agreed if I only did her ass or mouth. On the 3rd day her pussy was also open for business. Reyna was married with 2 kids, however she still worked as a bargirl so she participated sexually without any hang ups. It ended up that we got a tourist visas for my wifes sister and my wife's cousin Maria to go back to the States with us. Within 6 months my wife got pregnant. We planned this and when we went to get an ultrasound I mentioned it was too bad it wasn't twins. My wife asked me the next day if I wanted more kids right away. She said her sister and her cousin both volunteered. I was already 35 and for some strange reason I thought it would be great to not drag out the infant, toddler etc.. stages. So I said to my wife 3 kids sounds perfect to me. She took her siter and cousin to get their IUD's removed a few days later. So this was 18 years ago and I have raised 3 kids that are remarkably similar in age. Kids from 3 different women is not uncommon these days, however, having all 3 women still living in the same household is probably not very common outside of certain Morman communities. But I love it.