Just to recap, I had met a young couple Rebecca and Tony, now aged 20 and 23 as they've both had birthdays since we first met, initially to watch them have sex but our relationship had expanded to a full blown bi MMF. I'm just over 60 and English. I live on a Greek island and they are both Greek. Usually we meet for a whole weekend of fun about once a month or so. This brings us right up to date, this morning in fact, so I will probably split our latest adventure in two parts. Last Monday, Orthodox Easter in Greece. Tony had to fly to Athens for a works course and would be returning on Saturday morning. Rebecca was a bit put out at being alone for this time so Tony suggested she take a few days holiday, come over and stay with me. She was really up for this, however, Tony in asking me if this would be OK, did he for one minute think I would refuse such an offer, laid out some pretty strict ground rules. If Rebecca changed her mind or asked me to stop in any way I must do so and secondly nobody else should be involved and specifically no touching of Rebecca by anybody else. This was no problem, but I did have one query. The weather is improving fast from winter, and I suggested we spend time at the beach. Nudist beaches of course. Now others would see us, but on the strict understanding that was all and nobody would get near enough to touch or interfere with Rebecca. I also promised a couple of adventures, including the beaches. About 10 mins later it was Rebecca who called back delighted with the idea. So, Monday afternoon I drove over to Heraklion where their flat is to collect Rebecca. When I arrived she was showering, I think they'd been having sex together all afternoon! I repeated my commitment to looking after his girl friend while he was away just to reassure Tony. Coming out from the bathroom Rebecca was lovely, dressed in tight fitting jeans and a loose flimsy summer top with a plunging neckline. She rarely wears a bra so I had a good view of her nipples every time she bent forward. They kissed goodbye and Rebecca came down stairs with me and got in my car. We were both quite tense and nervous on the drive back, which takes just under an hour, Making an excuse of needing a pee, I stopped at a coffee shop attached to a petrol station. We had a coffee together and Rebecca seemed to become more at ease. Getting back in the car the conversation was much more comfortable. Thinking to myself how lucky I was, this stunning young girl all to myself for almost a week. I had to pinch myself to convince me it wasn't a dream! It was about 8.00pm when we got back to mine, the sun was just going down as I brought her bag out of the car and took it into our bedroom. We spent the evening sitting on the sofa, talking, being close with some gentle kissing and fondling of each other. I said to Rebecca that while she was here we should do a little experimentation to push her boundaries further. Tony had discussed this with her and she knew how I would play things, but not what we would get up to. About 10.00pm I suggested it might be time for bed. Rebecca agreed so we moved into the bedroom and both undressed. We lay naked together under a light duvet, kissed, cuddled and fondled each other but little more. Rebecca felt a little tense and nervous so I suggested lights out and we go to sleep. We fell asleep in each others arms, it was bliss. During the night, don't ask me what time it was because there isn't a clock in there, I became aware of Rebecca's mouth sucking gently on my cock. What a way to be woken, so I responded and we made love ever so gently before drifting back off to sleep. Our beach plans for the day were thwarted by heavy sands blowing off the Sahara. It was warm and bright, just not sunny, so we set off into Rethymon, the nearest town. On the drive in I told Rebecca I would treat her to a few nice things as a present for coming to stay. Our first call was to a very nice underwear shop where she took great delight in looking at the smallest, skimpiest and flimsiest items they had on offer. Naturally she tried on the ones chosen and left the curtain just enough ajar to give me the smallest of peeps. We bought a couple of summer tops then in another shop I spied a nice lemon coloured onesie which I insisted she have. Loose fitting she looked fantastic in it when she emerged from the dressing room. The weather had got warmer and the skies clearer so I suggested she keep it on. The assistant removed the tags and we set off for some lunch. Walking closely together I suggested we do something daring. Rebecca was bra less already so I said when we get to our lunch spot she go to the ladies and remove the skimpy black thong she was wearing. I told her it looked all wrong as I could see it through the onesie she was now wearing and spoiled the effect. Nervous at first she reluctantly agreed so as i found a quiet table she went off to the ladies, returning about 3 mins later grinning from ear to ear. 'Done?' I asked as she nodded in agreement. Rebecca opened her bag to show me the proof! We had a quiet corner table and I was just about able to slide a finger very discreetly inside her moist pussy occasionally when we were sure no one was looking. Walking back to the car I said how much better she looked minus panties and she agreed it felt good and loved the fresh air passing between her legs. First adventure accomplished. We dashed home and spent the rest of the afternoon making love, then after dinner returned to bed for much of the same. Being in bed with Rebecca alone for the first time really felt wonderful and again I had to pinch myself to remind me it was happening for real. The next day, Wednesday, the weather was clearer so we headed south to the beaches. Our season is about 3 weeks away from starting and although there are some tourists around it is generally quiet. The hotels and tavernas are all busy putting the finishing touches prior to opening. On the beaches the sunbeds and umbrellas are all stacked up waiting to be placed out in rows. I told Rebecca we would be going naked together on the beaches, that they wouldn't be too busy but we wouldn't be all alone for her own safety and security. She told me that while she goes topless whenever possible she had never been sunbathing totally naked especially in the company of others. Amoudi is a small secluded cove reached by walking down a flight of steps. There were maybe 25-30 other people down there as we arrived. Mainly couples , a few single women and some single men. I lay our rugs out, Rebecca sat down as I stripped off. 'You too?' I asked. She stood up and slowly and nervously removed her top and shorts standing there in just her bikini bottoms. Rebecca sat down, looked me straight in the eyes then slowly slid them off, sitting next to me totally naked. We each rubbed cream over our fronts until I rolled over, handed her the tube and asked her to rub some onto my back. She did, paying extra attention to the top of my legs, even sliding a hand under me to cup my balls and gently stroke my cock. When Rebecca had finished I told her to lie on her front and returned the favor. I gently cupped her breasts as I massaged the cream, into her sides, paying extra special attention to the top of her legs and bottom. While i didn't manage to slide a finger inside her vagina certainly got a few gentle strokes on the outside. We lay there for the day, went for a swim, although the water is still a bit cold and ate the lunch we brought with us. At one stage when topping up the sun cream a single male moved quite close to us. Before he could settle down I ushered him away to give us a bit more privacy. I know, lying there bollock naked with a beautiful naked girl at your side and asking for privacy may seem odd but I'm sure you know what I mean! He did no problem. By the time came to leave Rebecca's shyness had all but vanished and she strode confidently around the beach without a care. She walked to the rear of the beach to shower and she looked stunning with the water cascading off her lightly tanned body, and even better walking back to me, in the full knowledge i was going to have this fantastic girl again all to myself tonight. Which, after a meal at home I did, we made fantastic love together. Tony rang, so we told him what we'd been up to yesterday and today. Rebecca was bubblling as she told him and he sounded very excited too. So much so we changed to Messenger using the video facility instead. Holding the phone we weren't able to have sex together so he was restricted to watching us perform oral sex on each other, including me coming in Rebecca's mouth and watching my sperm dribble down her chin. Thursday was another nice bright, if hazy day so we again headed down to the south coast. As Rebecca's confidence in going naked outside and in myself had grown I told her we would be going to somewhere very secluded and maybe just maybe all alone. The thought of this excited her lots! There's a very long stretch east of Preveli Beach accessible by a rough unmade road. Good job I have a 4WD I thought as we made our way down the long and winding road. There's a favorite spot I have along there about half way along. Sheltered by a huge rocky outcrop there is some shelter to be found which extends out into the sea. A good location for some photos too. Quite a large area we weren't too disappointed when we spied one other car, a rental one so they were tourists, parked up. We laid everything out, stripped naked and rubbed cream on each other but this time we totally massaged it into each other all over front and back, paying special attention to all those special parts which might burn if it isn't properly applied. We lay in the sun, swam then enjoyed our lunch from the cold box we brought with us. The other couple were maybe 50m away from us and doing pretty much the same, although we did notice they were at times gently playing with each other. They came up to us in the sea and introduced themselves. From Holland this was the first week of their holiday. We introduced ourselves back and with a nudge and a wink simply said we were very good friends enjoying a day out together. All four of us standing there naked was really nice as we chatted and I could see Rebecca fully at ease with herself. We decided to go for a stroll along the deserted beach. We left our bag with them for safe keeping, just taking a small shoulder bag with nothing much more than car keys and some sun cream inside with us. Strolling along the beach where the waves gently broke over our feet totally naked and without a care in the world was heaven. Stopping occasionally to kiss, touch and fondle each other it was heaven. I loved it when Rebecca grabbed my cock to pull me along like a dog on a lead! Also we talked a lot too, about Rebecca's relationship with Tony, where I fitted in, how they were at this point in their lives and all that sort of thing, but that's personal and not for here. Certainly these few days had been a great step forward for all three of us, despite Tony's absence. After about an hour or so we found ourselves back with our Dutch friends. Collecting our bags we sat closer as they asked us to share a cold drink with them. We chatted about all sorts of things as she lay back into him while he gently stroked her body. As his touches became more intimate Rebecca lay back into mine as we kissed and fondled each other. We were all looking straight at each other as they moved into a 69 position to perform oral sex on each other. Remembering the 'nobody else involved' rule I whispered to Rebecca asking how she felt. 'Watch each other but no touching' was her reply so that's what we did almost mirroring their actions. I came in Rebecca's mouth then she fed it back to me before I pushed it back into hers to swallow. When she came she did so quite violently, her entire body shuddering and shaking. Eventually we drew ourselves away and made our way home for another wonderful night of making love together. At first we fucked, now we made love. So, Friday approached, our last full day and night alone. The original idea was that Tony, who was flying back mid morning Saturday, was to drive over to mine. I thought maybe they would stay over, but there was nothing planned. We video messaged again that night and after telling Tony everything we had done today decided to alter the arrangements, but I'll leave that for a final concluding part to be written very soon.