We were returning home from our holiday and sitting in the departure lounge and amongst other things we were discussing, we got onto the subject of people reputedly having sex on a plane. We both came to the conclusion that the toilets are hardly big enough for one person, certainly not for two and whilst in theory it might be possible, it was certainly not practical, especially for two people !. Eventually they called the fight, we boarded the plane and we took off. As usual the drinks came round followed by the unappetising food, after which we settled in our seats to watch the very uneventful film. After the film, it was quite late, so the cabin lights were dimmed and everybody got as comfortable as possible with the hope of getting some sleep. Catherine turned towards me, put her head on my shoulder and put her hand under my blanket and onto my lap. After a couple of seconds she started to feel me through my jeans. Whether it was our earlier conversation at the airport or the fact that we had both had shared a bottle of champagne with our food, but she was obviously feeling randy. Understandably because she was feeling me, I was getting hard. She then undid my belt, unclipped and unzipped my jeans and pulled out my now very erect cock which she continued to stroke under the blanket. After a few seconds she bent right down, pulled my blanket over her head and put me in her mouth. Looking round to see that nobody was watching, I was relieved to see that the young guy on the other side of Catherine, in the window seat, had fallen asleep. I was getting harder and more aroused by the second as Catherine’s hand massaged me and her warm lips sucked on me. A couple of minute or so later, to my horror and embarrassment the guy the other side of Catherine had woken up and had obviously seen what we were doing. Worried that he would notify the hostess, I tapped on Catherine’s back and whispered to her to sit up. However, to my relief and surprise he smiled at me and leaned forward towards me. “Don’t mind me”, he whispered, “Please carry on”. Catherine did exactly that, and continued rubbing and sucking me under the blanket. Because she was at such an awkward sideways angle in her seat, I noticed that her short sun dress had ridden up exposing her legs virtually right to the top. Knowing that, probably she might not be wearing any knickers, the guy sitting next to her obviously had a very pleasant view from his position behind her. The sight and temptation of this was obviously too much for him to resist. Catherine’s body jerked slightly, but probably because she was really enjoying what she was doing to me, she gave no indication that she objected when he put his hands between her legs and started to feel her. She let out a muffled groan as she continued to suck on me, and I assumed that was the moment when he had made her wet enough to ease his fingers into her. Catherine’s body then began to rock slightly as the other guy played with her. By now, I had now reached the point of no return and finding it hard not to make a noise, I stifled myself with the end of the blanket as I could no longer resist the intense arousal and my body jerked as I shot my load. Catherine wiped me with a serviette, pulled the blanket off her and sat up in her seat. “Your turn now”, I whispered to her and with that I put my hands on her knees and gently pushed her legs apart. She was probably then expecting me to start caressing her in some way. However, I then reached across and took the other guys hand and put it between her legs. I turned and smiled at her, “He must finish what he just started”, I whispered in her ear. I then gave her a reassuring kiss on the cheek. I then put my hand between her legs next to the hand of the other guy and I could feel she was very wet as we both started to tease her. It is always a real pleasure and a big turn-on for me watching Catherine acting like a slut, and here she was, on this occasion, having both me and a complete stranger feeling her between her legs at the same time. With a finger each, we finger fucked her, taking it in turns to massage and tease her clit, and it wasn’t long before we could feel her girly juices all over our hands as we made her come. She too then had to grab the blanket to stifle her moans and avoid attracting the attention of the other passengers. Without saying a word, the other guy smiled at me and turned round to face the window, resting his head next to the window, as if to go to sleep. Catherine and I adjusted our clothing, covered ourselves with our blankets and also made ourselves comfortable an attempt to get some sleep. In the morning when the cabin lights went on, the guy sitting next to Catherine did not say a word to us and acted as if nothing had happened the night before, which was a relief as I think we would both have been a bit embarrassed to talk about it. When we got off the plane, the guy disappeared into the crowd, never to be seen again. As for me, I couldn’t wait to get Catherine home, to get her clothes off and give her a good fucking whilst recalling the events of the previous night !.