Nikki was usually quite reserved, conservative clothing, nothing to revealing, though why she would want to hide her body I don't know. At forty one years old, she is still a slim size 10, lovely legs, pert bum and a beautiful pair of round, firm 34dd tits. Sexually, in the privacy of the bedroom, she was more adventurous, liking sex several times a week, in different positions. She allowed me to photograph her naked, including explicit open leg shots and video her whilst she was masturbating or using her sex toys. She enjoyed oral sex, both giving and receiving and sometimes allowed me to fuck her arse, usually while she used a vibrator in her pussy, pretending that another guy was fucking her. All harmless fun and fantasy. My suggestion that we should invite someone she fancied to join us for a threesome was rebuffed, not instantly or with accusations of my being a pervert but firmly enough to dissuade me going there again. A mistake I now realise. On holiday she was more relaxed about what she wore. Shorter dresses and skirts, tight shorts, vest tops without a bra. It took two or three holidays before she went topless, after I pointed out that her tits were better than many of the other women who quite happily sunbathed in just their bikini pants. Getting her to go all the way, visit a nude beach and strip off completely proved more difficult until 2012. A holiday in the south of France. We'd driven to a beach near where were staying not realising that nudity was permitted. Some people were naked, others in swimwear and after a moments hesitation I was quite surprised when she agreed to stay, though not strip off completely. The beach was long and sandy, backed by low dunes and almost deserted in places the further you walked from the car park. That night we had great sex, fucked three times, she sucked my cock, letting me cum in her mouth, swallowed my spunk, which she rarely did. Talking afterwards Nikki admitted that she'd found being on the beach exciting, commented that a surprising number of the men were shaved as well as most of the women. She had particularly enjoyed comparing all the different sized cocks and had been impressed by how large some guys were. “Do you want to go again tomorrow?” I asked hopefully. To my delight she replied she did and when I decided to risk asking if she'd go nude she said that she might. I don't think I really believed she intended to go through with it until the next morning. I'd showered and was sitting out on the balcony. Nikki had gone to shower and seemed to be taking ages. Eventually she appeared on the balcony, with a towel wrapped around her. She stood in front of me with her back to the railings. She looked around, checking no one was looking I realised after. Then without warning she loosened the towel, lowering it to her waist, uncovering her tits . “What do you think? She asked, letting it fall to the floor, revealing her now completely hairless, freshly shaved pussy. “Wonderful” was all I could say, amazed that she was standing outside completely naked. “Come on then. I think I'm ready. Let's go before I change my mind” she giggled hurrying back inside, picking up a beach dress and pulling it over her head, still naked underneath. At the beach she seemed less nervous than me. We found a fairly quiet spot, undressed, rubbed sun oil on each other and lay on our mats. She was braver than me and was the first to turn over, laying on her back, keeping her legs together. We spent a couple of hours sunbathing before returning to our apartment. Over dinner that night she told me she'd found the experience of being totally naked in full view of people liberating and was looking forward to the next day. She was ready before me the next day eager to return to the beach. This time she took off her dress, folded it, placing it on her bag before crouching, legs apart, exposing her cunt to a couple of guys sunbathing nearby while she rolled out her mat. She laid on her front, facing away from the two guys, for about 15 minutes before turning onto her back. Now on her back, feet towards the guys, she was revealing her tits and pussy. Seemingly without embarrassment, she bent one leg, then the other when the guys looked in her direction. With her feet on the mat she slowly parted her knees until she was wantonly displaying her cunt to their watching eyes. I watched in silence, mesmerised by her unexpected behaviour and willingness to display her cunt to a couple of guys. I remained on my front waiting until my hard on went down, before turning over. They weren't the only ones she flashed over the next two or three hours. I soon realised when she saw a guy, or more accurately a large cock she liked, she opened her legs wider as they passed. The age of the guy seemed immaterial, provided his prick was particularly large. At one point she went for a walk further along the beach, leaving me with our stuff. She was gone about half an hour, disappearing into the dunes for several minutes. I'd noticed other people going into the dunes and thought nothing of it at the time. She returned and sat next to me, only mentioning the dunes went on for a good distance and were secluded. She lay back again, legs open, her pussy gaping and if anything looking wetter than before she'd gone for the walk. I benefited from her games, back at the apartment later, she was as randy as I can ever remember. We fucked in the shower, again on the bed. Afterwards she remained naked, curtains open, lights on when it got dark, ignoring my warnings she might be seen, laughing that plenty of people had already seen her naked and she enjoyed the freedom of not wearing clothes. That night she insisted on fucking out on the balcony, even though the couple next door were only feet away, the other side of the dividing wall. I tried to be quiet but they must have heard Nikki who came loudly, admitting later she got a thrill knowing they were there. The change in her amazed me. My comment about her uninhibited behaviour elicited the response “You ain't seen nothing yet” followed by a refusal to tell me what she intended to do. The following morning she was up and showered, moving around the apartment naked, going out on to the balcony in full view of an apartment opposite which was a floor higher, on the top floor. It was the only one with a clear view, looking down on our balcony and we knew it was occupied by a group of lads. There was no sign of them and unless she was next to the railings no one in the other apartments could see her. I left her laid on a sun lounger while I went to the supermarket to fetch breakfast, which usually too about 30 minute. As I left the building I glanced up at the apartments opposite, and saw the four guys out on their balcony, obviously looking towards ours, where Nikki had been laid naked. I hurried back up, to warn her, in case she'd dozed off and was unaware, though to be honest, after the previous day, I suspected she was well aware of their presence. I let myself in and immediately heard a buzzing noise, which I recognised as her vibrator, coming from the direction of the balcony. Realising what Nikki must be doing, moving as silently as I could I crept into the lounge until I could see her through the patio doors. My suspicion had not been misplaced. She was still on the lounger, one foot up on the patio table, the other on the floor, legs spread wide, her head turned looking towards the watching guys. From behind and to one side I could see she was rubbing her vibrator up and down her gash then holding the vibrating tip against her clitoris. She moved her free hand to her tits, teasing and pinching her erect nipples. The hand holding the vibe moved and though I couldn't see, I knew, as the buzzing changed, that she was sliding the vibrator into her cunt. I moved further into the room, better to see. I heard her sigh as she pushed the plastic prick into her hole, the buzzing increasing as she turned it up to maximum. She began moving her arm, fucking herself with it, watched by the guys opposite. She moved her other hand from her tits to her clitoris, frigging slowly at first, then faster as she became more excited. I heard her moaning and gasping loudly, mumbling to herself that she was cumming. She wasn't the only aroused, my cock was rock hard. I pushed my shorts down, releasing my erection and started to wank. I held back from cumming, watching in admiration at her nerve and wanton, slutty performance. I heard her cry out she was cumming, her arm moving the vibrator in and out of her cunt rapidly, her fingers, furiously rubbing her clit as she climaxed. Still holding my stiff prick I stood rooted to the spot, waiting for her to see me. She lay with the vibe still buzzing inside her pussy for several seconds before pulling it out and switching it off. She moved her foot off the table, sat up, gave a wave to her audience before swivelling around towards me and standing up. She jumped when she saw me, not guiltily because I'd caught her masturbating while the guys watched but simply because she hadn't heard me. She looked at my stiff cock, a giveaway that I was turned on by what I'd witnessed. A grin spread across her face as she walked over to me, took hold of my prick, pulling me towards the patio doors. She sank to her knees, took me in her mouth and sucked me off. Neither of us cared that the guys opposite could see. She swallowed my spunk, stood and went to the bathroom to shower again, calling back to forget breakfast, she wanted to go to the beach “For some more fun” I hope you don't mind, but I think this is probably a good point stop. Nikki is eager to take over and continue the story because we both think it will be better told from her perspective. Leave a comment if that is acceptable or not. Alternatively if you think the story boring or not sexy enough and that we shouldn't bother to continue, please say so.