My wife and I were on an RV trip a few years ago and spent 3 nights at a campground in MI. Next to us was a single guy who was working in the area. We talked to him the first night and invited him for a beer the 2nd night. I could tell my wife was attracted to him and teased her about it that night in bed. We have had a few threesomes with friends at home but never with a stranger so the 3rd night he came over with some beer and after a few the conversation got flirty, it cooled off so we invited him inside. We were all on the couch watching tv and my wife inched closer to him, soon had her hand on his leg. He said he was going to miss us and she said he should have something to remember us by and leaned over to kiss him. He looked at me, I smiled and asked if he enjoyed it. He said yes, it got lonely being by himself and before long they were making out and she was rubbing his crotch. She got up and led him to the bedroom, I followed and helped get her undressed while she undressed him. We all ended up in bed, she started sucking his cock as I licked her pussy. We both took turns fucking her until he exploded inside her and I followed in her cumsoaked pussy. We all layed together talking for awhile, I went to the bathroom and returned to her sucking him hard again and they fucked again for quite awhile before he came again. After collapsing for awhile he kissed her goodnight and said he definately would remember us, gathered his clothes and went to his camper naked. We had sex again, he had a nice sized cock so she was stretched out a little but with all the cum inside her it felt awesome. We slept in in the morning and headed out, talking about our new friend