I could hear laughter and sounds coming formthe room.After sometime, there were love sounds, kissing and cuddling soundsfrom inside. Finally, I could ...ontrol myself no longer and knockedat their door loudly. The door was not locked and it swung open andI was surprised to see my SIL and the guy totally naked on the bed.The guy was on top of her and he was fucking her and she wasshouting-`yes dear, fuck me hard….”. The moment I burst in, theywere interrupted and their attention was on me. The guy. Bill is already there. Bill and my wife have a long history of flirting, which turns me on more than I can explain. When we arrive, we all greet each other, a handshake for me and a lingering hug for my wife. She is wearing a pair of loose fitting khaki shorts, brightly colored t-shirt, bra and panties. We all crack open a beer and sit around the campfire making small talk. Bill helps me fire up the grill and I do the cooking. All the while my wife and Bill are chatting and flirting, as usual.. I slipped off my gloves and apron, checked out the window onelast time. With the coast clear, I headed to the box walking as quicklyas I could in the heels and tight skirt. Like last night, it feltinvigorating to be outside in such sexy attire. Although by the time Igot to the mailbox, my skirt had crept up above the bottom of my butt,the skimpy tanga panty easily visible even though it too had crept intomy butt crack exposing a lot of cheek. I had just begun to open the box,when I saw Mr.. She licked my girlfriend's pussy while I fingered her and Bill worked his way into the action. That night was hot, we fucked and I got to see Rachel get her pussy stretched by my cock and her asshole stretched with my thumb and fingers. She was fucking naughty and I knew I wanted more. I honestly had never had someone suck my cock like she does Just amazing deep throat skills. So we all fucked that night and time went on. We still kept in touch, but we never all hooked up again as a group. But,.