Late at night, following a wedding, we were sitting in our living room with a few friends, chatting with drinks before going to bed. The guests were staying the night and would take up all the spare bedrooms and both the living rooms leaving no room anywhere.There was a ring on the doorbell. On the doorstep was another friend, Neil, from the other side of the country. He was the worse for drink - so much so that he had had an argument with his family, been left behind and could not remember where they were staying. We had no idea either, and his wife's mobile phone was turned off. As he was in no fit state to send on anywhere, we took him in. The only space available was on the floor of our bedroom at the foot of our bed. I helped him upstairs where, with more help, he undressed completely, got into the sleeping bag provided, and went straight to sleep.I went downstairs and chatted with our guests for another half-hour or so, and then we were all ready for bed. My wife and I went to our room and went to bed wearing our customary birthday suits for sleeping, not really thinking of Neil being in the same room. I was having trouble getting to sleep as it was a warm night, and lay there in a half-doze for some time. My wife, on the other hand, had had a long and tiring day and had consumed a lot of alcohol, so went straight off into a deep sleep. The bed-covers were off down to our hips because of the heat. I heard Neil get up and go to the bathroom for a pee. The moon was bright with the curtains open so he had no need to switch on a light. I could see that he was naked, and he must have observed that we were also bare if he was awake enough. He came back into the room but instead of getting back into his sleeping bag he climbed onto our bed beside my wife. I was on the edge of the bed facing my wife, and she was sleeping on her side in the middle of our king-size bed and facing me, so there was plenty of room for him. Neil snuggled up to my wife's back, put an arm around her taking her breast in his hand, and appeared to go back to sleep. I thought this was highly amusing so did nothing about it, wanting to see my wife's reaction when she awoke.After a few minutes like this, he roused again and started first gently fondling, then massaging my wife's tits which are well worth groping - and kissing and sucking her back. By now he was obviously awake and aware of his mistake - if it was a mistake in the first place. I was not too close to her, so he had free play. He slid his hand down to her groin and played there for a little while. My wife murmured and rolled onto her back, rousing but not properly waking at that stage He started sucking, licking and kissing my wife's breasts and stroking her abdomen and fanny very softly. He was taking full advantage of the chance offered, thinking me to be asleep. My wife woke at this point and realised that it was Neil, and not me playing with her body. She looked over in my direction, saw that I seemed to be asleep, then whispered to Neil that he shouldn’t be doing that, at which he moved up and placed a kiss on her lips. Rather than spurn him, she placed her hands on the back of his head and a long lingering kiss ensued. He pushed the covers off of both of them to give himself full access and I could see his large erect penis. My wife parted her legs slightly, and moved her hand to his prick. He gave her pussy some more attention with his fingers, which I knew would make her lubricate freely, and soon after moved on top of her. He slipped into her and started gently pumping away, still suckling and fondling her dugs. She put her arms around his back and raised her knees, and the bed rocked gently to the rhythm of their love-making She made the soft mewing sounds that she makes when she is coming but does not wish to make a lot of noise, then his strokes quickened and deepened. He thrust into her fully, went rigid and grunted, thrust slowly a few more times, then stopped moving. They exchanged another deep, lingering kiss, and shortly afterwards he slipped off of her, out of the bed and back into his sleeping bag. I lay there thinking about the excitement of seeing my wife give herself in this way, and when they were both asleep wanked myself off to the images in my mind.The next morning when my wife and I woke up, I asked her if we should invite Neil into our bed. She sounded horrified at the idea. Not fair on his wife, houseful of people, what sort of woman do you think I am? Then she got out of bed, and the next thing the shower is going. I guess she didn’t want me to find Neil’s spunk inside her