It all started when my wife's BF (Linda) suggested that my wife (Cheryl) and I go on a double date on Valentine's Day with Linda and her husband (Bob). When we arrived at their place we wondered where we were going for our date when Linda came out and said we weren't and dinner was at their place. During the evening the topic of sex came up and my wife said that she would like to have an intimate time with another woman while I watched. I thought this was Cheryl stirring me up as she usually did. After dinner Linda escorted Cheryl to the bedroom unknowing to us that they were going to do it. Bob and I were chatting when we heard moaning sounds from the bedroom. Bob and I raced in seeing Linda with a strap-on fucking my wife doggy style. I grew hard and I looked at Bob and he told me to take Linda from behind and then told Bob to fuck Cheryl. Bob's cock was close to 9 inches and Cheryl was nervous at the size of his dick.My clothes were off in an instant and Linda took her strap-on off and I slid into her drenching pussy. While fucking Linda she told I could cum inside of her if I had oral sex with her hubby. I withdrew from her and went on the floor when I took Bob in my mouth. It was so good tasting my wife's cum on another man's cock. I sucked and sucked until he was about to blow. I ordered Bob to cum in Cheryl as I thought it was fair if I came in Linda he should cum inside Cheryl. I got Linda in the missionary position and thrusted until I blew my hot cream inside of her. Linda's screams sent Bob into spraying his creamy love juice into Cheryl. All four of us continued to fuck that night until we were asleep. When I woke up the next morning I was still inside Linda and Bob was still inside Cheryl. We all looked at each other and smiled and started again by me banging Linda from behind in the shower while Bob and Cheryl masturbated each other. We still continue kinky nights in to this day.