A couple years ago we were on a camping weekend with friends. My wife and I were sharing my single buddy's motorhome and the sleeping quarters were 2 twin beds directly across from each other but we were close friends so it was ok. My wife thought my buddy was cute and we had even come close to some sex encounters previous but they never quite happened. We were all getting a little drunk around the fire and I decided to turn in. I was asleep but felt my wife slide in next to me. A little later I woke up to those two making out right next to me. He whispered to her to join him, undressed and laid down in his bed. I whispered to her to go for it if she wanted, she said are you sure and I nudged her out. It was pretty dark, he didn't know I was awake, they kissed awhile then she moved down, slid his cock out and sucked him until I could tell he was getting close to cumming. She wanted to fuck, went back to kissing to cool him down then he rolled her over, pulled her nighty off and she guided him inside her. They must have fucked for 20 minutes, I heard her cum at least 3 times when he exploded. They collapsed, he must have passed out and she came back to me. I was rock hard, asked her how it was, she said couldn't you tell and I slipped into her from behind. He must have shot a huge load because she was so soaked I couldn't hold on long and shot another load into her. Things were a little awkward when we all woke up naked and sticky in the morning, we all showered and got another day started. We hung out together often, she sucked him off one night in his truck while I drove and they fucked a few times at our house after I fell asleep but she told me afterwards and I was happy with seconds. He eventually got married and our fun ended but the memories are good and we found another fb.