My friend Jennifer and I decided to go away for a week to Tenerife and I found a lovely hotel in playa de las Americas. Jennifer had been a bit down recently following the breakdown of her 20 odd year marriage, I thought a week away chilling by the pool with spa facilities might be just the pick me up that Jennifer needed. My plan was to spend time around the pool, have some spa treatments, along with some shopping therapy and then head out on the town for some evening entertainment. We arrived at the hotel and after we had checked in, we had a quick swim followed by a slightly longer dip in the hot-tub and a lie down in the sun. Suitably refreshed after the plane journey and our afternoon chill out we ate dinner in the restaurant and took the remains of our bottle of wine into the lounge area. Sitting in the lounge we joked about the steady stream of reasonably fit men passing through reception and sitting in the bar, we were pleased to see that one or two seemed to glance our way but we were left in peace to enjoy our wine followed by a cup of coffee before we headed off to bed. On our second day we decided to venture outside the hotel grounds, it was a lovely bright sunny day with a nice breeze coming off the sea, we decided to go for a jog along the promenade, and were really pleased at the admiring glances we were getting as we jogged in or running pants and tight tops. In was a tiring run some 8 miles in all, the sun had left us very hot and weary, we decided back at the hotel we would go and have a sauna to loosen up and then go out to get some sun. When we were changing we both burst into fits of laughter when we agreed that exercise always leaves us feeling really randy and in the need of a good shag. It was good to see Jennifer laughing and enjoying herself, with that we headed of the sauna. Jennifer and I were relaxing in the sauna, Jennifer lying on the bench seat above me, said "You know, I've never been naked in a sauna before and, as there are only the two of us, and everyone’s out sunning themselves, would it bother you if I took my cossie off?" I was slightly surprised but told her I didn't mind. I had my eyes closed and heard her moving around then her feet hit one of my legs and she said "Sorry". I opened my eyes to see her leaning down removing her bikini bottoms off her foot then she manoeuvred herself back onto her bench and lay down on her back. She had a lovely body, we both had similar waists and hips, however Jennifer had a beautiful pair of 34E boobs which had always attracted the opposite sex. I closed my eyes and relaxed again, seeing Jennifer naked, her smooth pussy and her nipples standing out had made me feel slightly aroused. I had never thought about Jennifer in a sexual way before so I was a bit surprised that catching a glimpse of her glistening naked body was having this effect on me. Seeing Jennifer naked made me think "Why not?" and I reached behind and removed my own bikini top. I have to admit that exposing my boobs to the heat of the sauna gave me a vicarious thrill, (I have never gone topless on holiday). I felt my own nipples hardening and understood why Jennifer's had done the same. I was enjoying the sensation when, all of a sudden, Jennifer's hand landed on my breast. I gasped and opened my eyes but it appeared that she had just relaxed and her hand had slipped off the bench to rest on my chest. I could feel myself breathing slightly more deeply as the touch of her hand against my skin was slightly thrilling. I decided to just stay as I was and enjoy the accidental contact. All of a sudden the back of her hand moved across my breast. A ring that she was wearing came into contact with my nipple and the heat was painful yet very pleasurable. I concluded that the contact had not been as accidental and innocent as I originally thought. So I lifted my body slightly to increase the pressure against my breast and nipple, sensing what I was not shocked by her action made Jennifer continue the exploring of my boobs, although shocked it was too much of a pleasure to stop and Jennifer started tweaking my nipples. The sensation was just out of this world, my mind was racing, shall I return the pleasure to Jennifer, what if I was misreading her actions, I am enjoying this so much, am I bi sexual? I made a quick decision, I would return the pleasure to Jennifer and I lifted my arm in order to start stroking her boobs at that point the door to the sauna suddenly opened. Jennifer's hand quickly withdrew and I dropped my hand back to my side. A man's voice which had a German tone to it said in broken English "Oh, so sorry, I didn't realise anyone was in here. Hope you don't mind if I join you, please" My hands immediately crossed over my chest to conceal my boobs. I opened my eyes to see a very fit young guy standing just inside the sauna door. Without thinking and the interruption to what could have been my first bi experience, I snapped "No, that's okay. But please close the door before all of the hot air escapes." "Whoops a daisy. Will do." He replied, allowing the door to close behind him. I noticed that the guy was like a rabbit caught in headlights, his eyes wide open staring beyond me. It was then that I realised Jennifer was lying on her back, fully exposed to his gaze. As she hadn't reacted I assumed that she also didn't mind but I was a bit surprised that she had not even partially covered herself. It made me wonder if Jennifer was dozing but I soon realised that she was awake and seemed to have decided to brazen it out. I relaxed and closed my eyes as the guy sat on the bench seats just inside the door, keeping his towel wrapped around his waist. I decided to relax and proceeded to lie on my back, giving our visitor the opportunity to see my boobs. I could see him sneaking crafty glimpses at Jennifer’s body and then at mine, being exposed to his gaze was sending thrills through my body. Eventually I opened my eyes slightly and looked over towards him and to my shock he seemed to be resting his hands over his groin. I was naughtily wishing that I had been as adventurous as Jennifer and had removed my bikini bottoms. I wondered how he would have reacted if we had both been laid out naked before him and would he be staring more at me than Jennifer. As it was I could feel my arousal increasing just at being topless in front of him. I imagined that Jennifer was also secretly enjoying this and wondered if now she was a free agent, she would be interested in the guy sitting in front of us. All of a sudden Jennifer mumbled something and her left leg dropped from her bench onto mine. "My God" I thought, "is she really flashing her pussy at him?" Was this really the reserved Jennifer I knew? I could see the guy rubbing his hand gently across his towel. I'm not sure how I prevented myself from gasping as a very large erection appeared. It was clear that his other hand was moving slowly up and down his cock, his towel had fallen down slightly giving me a good view of his cock, it wasn’t as big as I first thought, a lot shorter than my husband’s but quite a bit thicker. He had his hand wrapped around his cock, his thumb and forefinger making a circle that could in no way close around his girth and he was stroking up and down his length. As I stayed lying down I saw Jennifer's other leg drop down so that both of her feet were resting on my bench. She sat up and stared at the guy and totally flabbergasted me by saying “that’s a very nice specimen of manhood”. The young guy groaned slightly as he continued to stroke himself. Jennifer then manoeuvred herself over me onto the floor and stood in front of the guy. Dumbstruck, I just watched as she reached out and removed his towel and hand from his cock. I couldn't see her front and I wasn't absolutely sure but it looked as if he had placed his hands on her boobs. Then I saw Jennifer’s buttocks clench and I assumed that was due to the sensations from the strangers' hands on her body. She moved forwards until her thighs were up against the lower bench on which the guy was sitting. I cannot tell you how turned on I was enjoying watching the proceedings and there was a slight pang of jealousy as her hands dropped down the guy’s laps and took hold of his cock that must have been in desperate need of some attention. The guy rested back against the benches as Jennifer's hands performed their magic. It wasn't long before the guy’s hips were moving in time with Jennifer's hands and pre-cum started leaking from his cock. Once the pre-cum appeared Jennifer slowed her hand movements then stopped altogether and released his cock from her grasp. When he opened his eyes Jennifer gave him a come-hither signal with her finger then opened the sauna door. The guy jumped up and I saw his short very fat cock stuck straight out in front of him. The guy followed Jennifer out of the sauna and the door swung closed behind them. I was stunned that Jennifer had left me in the sauna whilst she departed with this naked young guy. I quickly stood up and moved to the sauna door, and wiped away the mist to get a clear view out of the window. Now I was gushing at the sight of seeing my friend walking naked and leading 6ft tall young black man across the floor to the hot tub was quite something. They climbed into the hot-tub. Jennifer moved to the opposite side then turned round so that she was facing me. Her eyes were looking at his cocks and she then continued to play with it, then, very briefly I saw her glance towards the sauna. I was sure that she could see me watching. She seemed well in control so I decided to see how things developed. I thought I would be able to make some noise exiting the sauna and hence rescue Jennifer if it looked like she was uncomfortable with whatever happened. As I watched, the guy helped her up onto the side of the hot-tub then with her feet resting on a step she settled into position. The guy took hold of her boobs with one of his hands and placed the other on the insides of her thighs. As one hand played with her boobs and nipples the other hands ran gently up and down Jennifer's thighs. Ever so slowly her thighs parted and the guy’s hands inched further upwards with each stroke. The guy must have increased the pressure on her thighs because they continued to part. Eventually her knees were very wide apart and I could make out his black hands as they came into contact with her white skin between the tops of her thighs and her pussy. As his hands stroked her I could see Jennifer's pussy opening and I could only imagine the pleasure she was feeling with his large black hands running all over her body. All of a sudden he moved his fingers over her clit and then slid them between her evidently moist lips. A squeal of pleasure erupted from Jennifer and her hips started to jerk. I could see his other hand pulling and tweaking her nipples as his other hand played with her sensitive lower regions. Jennifer's hips started rotating as the stimulation continued. Her head was moving from side to side and she was chewing on her lower lip. I could hear Jennifer gasping "Oh God yes!" over and over as the guy slipped two fat fingers inside her pussy and proceeded to finger fuck her. Jennifer let out a long cry as an orgasm washed over her. I heard a whimper and realised that it was my own. Unconsciously I was playing with my own nipples. I could feel pleasure building up inside of me. Although I wanted to burst out of the sauna and join the couple in front of me I decided that I couldn’t or shouldn’t be unfaithful to my lovely husband and to let Jennifer have her fun, my role was to see that she was ok and no harm came to her. Coming to my senses it occurred to me that anyone could just walk in, although it would be unlikely as it was a scorching hot outside and the sauna would be the last place they would want to go to, never the less I crept out of the sauna and locked the door in an attempt to stop any more people entering. I then went into a small shower cubicle. As Jennifer's orgasm faded the guy leant down and took a nipple into his mouth. I could see him chewing and nibbling it and Jennifer's hips started moving again and his other hand was near her bottom, Jennifer lifted her bottom up and let out a scream, my god she was letting him finger her arse, her pleasure built again and was very quickly orgasming for a second time. The words "Lucky bitch" was going through my mind. My hand had slid inside my bikini bottoms and was delving into my own moisture, slipping between my own very moist lips and spreading it over my clit. I heard Jennifer whimper "I've got to have your cock inside me." The guy replied rather forcefully, “I want BJ first” I opened my eyes again to see that Jennifer was ok. The guy climbed out of the hot-tub and sat down of the edge of the tub. Jennifer knelt on the steps and leaned over him, taking his cock into her mouth. Her lips were very stretched but I was impressed that she was able to take the top two inches into her mouth. I could hear Jennifer moaning around the cock in her mouth. Then her head bobbed up and down on his cock for the next few minutes making slurping sounds and causing the guy to let out a series of moans. Then Jennifer lifted her mouth off his cock and I heard her say "now fuck me with your cock!" and with that she sat on the step with her legs open. I have to admit that my jealousy was raging and I could barely control myself from leaving the shower cubicle and joining in, like most women my favourite reoccurring fantasy was to be fucked be a black stud, now I was watching this unfold in front of me, but it was happening to my best friend. He made his way to Jennifer and placed his cock at the opening of her pussy. Jennifer placed her hands on the edge of the hot-tub and prepared herself by spreading her legs. It then occurred to me that she wasn’t going to ask for him to use a condom, Christ she would still be fertile and there is the risk of STD’s, I froze not knowing what to do, should I spoil their fun and bring a sense of reality to the occasion. It was too late as the guy started feeding his cock slowly inside Jennifer. He held her hips and pushed inside her. He then eased backwards until the tip of his cock was the entrance to Jennifer's slit. The second time he thrust in slightly more forcefully and I heard Jennifer groan. As he did so Jennifer was whimpering saying "Oh yes. Stretch me. Fill me up with your lovely black cock." It didn't take as long as I thought for him to bottom-out in Jennifer, but then he just stood there. "God, what are you doing?" I heard Jennifer say as I saw the guys bottom cheeks clench and unclench. I assumed that he was moving his cock around inside her and wondered what that felt like. He moved his hips back slowly and Jennifer moaned. He reversed the motion and Jennifer moaned again, this time louder. He just kept doing this and Jennifer's moaning was getting louder and louder. I was so impressed this young guy know far more tricks than my husband. Unbelievably she was heading towards a third orgasm as and the guy and I were rapidly approaching our first. All of a sudden Jennifer screamed "Yes. Yes. God, yes!" and her head dropped as she let out a long sigh. The guy moved Jennifer’s legs over his shoulders and held onto Jennifer's bottom and started thrusting in and out, driving towards his own climax, I was surprised at how easily she was accommodating such a thick cock. My fingers were now flitting across my pussy and over my clit with increasing desperation. I felt my own pleasure peaking. I was so close. I thrust two fingers inside me and played with my own nipples and then felt my orgasm wash over me. My legs almost gave way but I was able to rest against the seat in the shower. As I recovered I heard the slapping of guys thighs against Jennifer followed by a man's loud groan and then all the noise stopped. I stood up and looked out of the shower cubicle and could see Jennifer spread-eagled on the floor. The guy was laying on top of her with his cock resting on her tummy and there was streaks of his cum across Jennifer’s tummy, boobs and neck. I was so glad and relieved to see that he had withdrawn just before cumming. Then he sat down and started to slowly stroke his cock, my God he appeared to be hard again and he moved behind Jennifer and manoeuvred Jennifer onto all fours, my favourite position and pushed his cock in to her pussy. He moved her legs wider apart and moved forward and seemed to slip in very easily. He tightened his grip around her slim waist and started to thrust in and out of Jennifer, establishing a new rhythm, I could hear the regular slap as his groin meets Jennifer's bottom. Jennifer turned her head to and they started to kiss. His lips played over her mouth, nose and eyes and his hands played with her breasts and nipples. He seemed to revel in his 'work', periodically pinching and pulling Jennifer's nipples then running his fingers around her boobs. The guy’s thrusts were so rapid now, that Jennifer’s boobs were bouncing all over the place and his grunts became louder and louder, I was sure he was going to cum shortly. I am thinking please, please don’t cum inside her. My prays were answered when he suddenly pulled all the way out, allowing his cock to rest on Jennifer's bottom then thrust one time more and his cum spurted out of his cock onto Jennifer's back. He held Jennifer's hips as he got his breath back then released her and stepped back All of this work of by the guy enabled Jennifer to reach a much quieter fourth orgasm. Afterwards Jennifer and her new found lover were laughing and cuddling on the floor, I made my way out of the shower to the sauna. I left the sauna now wearing my full bikini and carrying Jennifer's bikini and everyone's towels. Jennifer looked a little sheepish as she slipped her costume on. The guy looked towards me, motioning down at his cock which had started to go hard again (the wonders of youth). In broken English he said “tomorrow we have, a threesome, I have plenty to satisfy you two sexy women” I smiled at him saying “in your dreams” and tossed him his towel. Then I helped Jennifer out of the tub and Jennifer thanked him and wished him well as we made our way to the exit, I opened the locked door and thanked God that no one had tried to get into the sauna area this afternoon. Jennifer was quiet all the way up in the lift to our rooms and kept on saying how sorry she was, but it had been over 2 years since she had been fucked, she was so sexual frustrated, the earlier events in the sauna had just pushed her over the edge. I assured her that I was thrilled that she had had such a fun time and been so fabulously fucked. Jennifer surprised me, “I know you enjoyed it because I saw you watching and playing with yourself in the shower area, didn’t you get the urge to join in”. “Honestly I was so near to climbing into the hot tub with you and that guy, the thought of being unfaithful stopped me and that I did not want to intrude in your pleasure” I desperately wanted to clarify with her the events prior to the guy coming into the sauna, but Jennifer’s last remarks about joining in had left me stunned and I bottled out and in the end said, "Who knows, perhaps tomorrow will be my turn!"