Hot tub fun in the Spa I was staying in a very exclusive hotel with a gorgeous spa, a high end place, members only with fantastic facilities. Outside there was a Swiss style hot tub overlooking the beautiful grounds. I don’t know about you but posh spas always make me feel horny, just the potential for naughtiness if you can find someone like minded. It was a fairly quiet day, only a handful of people about. I couldn’t help but notice one couple; they were in their mid to late 20s, both in good shape. She was a gorgeous woman; slim but curvy with tied back long dark hair, wearing an elegant black bikini that showed off her lovely body. She had well defined breasts, not too large, but gorgeous. He was dark haired, stubbly but looked friendly. They were clearly having fun and getting on well together. They said hello to me, and at one point she seemed to catch me checking her out as she walked into the pool, but rather than look annoyed she just smiled at me. I got a sense that they were naughty. The outdoor hot tub was pretty secluded, not easily seen from any other part of the spa. It was freezing cold outside, just a touch above freezing. I noticed that they had been out there for a while, and having a sense that something might be afoot I decided to head out there. ‘There’s somebody coming’ she said. That confirmed they were up to mischief! I climbed into the tub with them and said hello, they were friendly and smiled hello. After a minute or two it was clear they were messing about under the bubbles, she was giggling a little and giving him a ‘what are you doing’ look occasionally. He clearly didn’t mind that I was there, and seemed to be upping the ante, almost making it more obvious for my pleasure. I relaxed a little, and stretched my leg out. It just caught her ankle a touch, and rather than recoil she kept her leg against mine. I smiled at her, and started to very gently rub up and down her leg. I was very hard by this point. I asked them if I could turn off the bubbles, hoping to get a better look at what was going on. She looked a little coy but they agreed. I turned them off. Once the bubbles settled it became obvious what was going on. Her bikini bottom wasn’t on, he was to her left and was playing with her pussy with his right hand, and she was wanking him off! In order to break the ice I said, “Excuse me I think your bikini bottom has accidentally come off” and we all laughed. I asked if I could come closer, she looked at him, he nodded and she said fine. I came around to her left and started rubbing my hand along her smooth thigh, initially outside then working my way along her inner thigh and gently stroking her pussy under the water. Her boyfriend was clearly getting more and more turned on, as was she, judging by her hard nipples showing through the bikini and her breathing becoming more rapid. My fingers started to tease her, and even underwater, I could feel that her pussy was very wet. This was all quite slow, at least 5 minutes or so. At this point her right hand reached for my cock, which was rock hard. I untied my swimmers and she started to wank me as well. If you can imagine the scene - I was fingering her underwater, her boyfriends hands were all over her, and she was now wanking us both off, me on the right and him on the left. This was already beyond my wildest dreams, but then he whispered something into her ear, I could only hope it was some sort of permission to take things up a gear or two. She then climbed up, and over on top of me, facing towards me. During this movement, her body briefly came out of the water, and I got a good look at her pussy, exquisite, quite hairy with dark pubes. He kept a lookout for anyone else coming outside. Instinctively, I put my hands on her smooth bum, and she guided her pussy to my cock. We kissed a little and I had a feel of her breasts under the bikini top. It was quite hard to enter her underwater, but I didn’t mind as I was enjoying rubbing my cock around her pussy. Suddenly the positioning worked out and I went straight inside her. I couldn’t quite believe what was happening. I was fucking this guys girlfriend, in public, completely lost to sex and not really aware of my surroundings. It wasn’t long until things came together, I could sense I was on the verge of cumming, as was she. I thought I better give a warning, I’m going to cum I said. She seemed to get off on this, and rode me with all her weight on top of me. As I came inside her we both probably made too much noise and then she giggled and jumped off. He clearly wanted to be next. Sensing I should give them some space, I thanked them both, pulled up my trunks and left. I knew he couldn’t wait to be next. I didn’t see them again, and didn’t even know her name!