The elegant Georgian theatre foyer in my genteel spa town in north Yorkshire was full of the well-heeled elite of the County in their finest outfits for a Gala performance of celebrated classical violinist and a renowned chamber orchestra.

I looked around at the throng of largely middle-aged to somewhat older audience as they sipped G&Ts or champagne.

A wave from across the room caught my eye; Marcie was beckoning me over. I saw her standing beside her husband Greg who was in conversation with a younger couple. I made my way towards them. Greg saw me and introduced me to the couple.

"Meet Ariadne and Alain de Breton, Alan!" Evidently amused by introducing two "Alans." We exchanged pleasantries, handshakes from Alain's very large hand and kissed cheeks with Ariadne.

Alain and Ariadne were a striking couple in several ways, not least a disparity in height, and while he was around thirty, she was very much younger.

He stood at something over, I guessed, 1.90m with broad and powerful shoulders, while she was petite; 1.50m, though wearing high-heeled sandals, at about 6.5cm. He was in an evening jacket and black tie like me, Greg and most of the men there.

The ladies were resplendent in evening gowns, though very different, Marcie wore a flowing kaftan-like dress of vibrant colours caught in at her waist with a gold chain belt. Ariadne was in a figure-hugging creation in silver diagonal stripes with a thigh-high slit revealing a very shapely leg. And what a figure it hugged! Curvaceous as an adjective hardly did justice to her.

I confess my cock responded and prominence in the front of my trousers became evident. I felt myself blushing too and hoped it would pass for just the effects of the warmth of the venue and my glass of champagne. I may have been mistaken and overly self-conscious, but I thought I caught glances at my crotch from the quartet. Which of course made me even more aroused.

The bell was ringing to summon us into the beautiful auditorium, and we parted to take our seats.

As the virtuoso violinist and the orchestra opened with Ralph Vaughan Williams' "The Lark Ascending," I was distracted from following the music by memories of my thrilling and decidedly messy, bisexual encounter with Marcie and Greg a few days previously.

As we'd mopped the mutual sexual juices from each other and relaxed naked for more tea, Marcie and Greg had explained that they were, socially and sexually, nudists. And self-evidently, happily bisexual in their open relationship.

"Nudist rather than naturist," they explained. "Our naturist friends are rather keen to divorce their nakedness from issues of physical attraction, sexuality and arousal."

"Nude, for us, as distinct from naked, suggests a certain intentionality, and for us and our fellow nudists, an acceptance that our nude bodies can and do arouse sexual desire, which is natural and cause for celebration, indulgence and enjoyment! Straight, Gay and Bi and all our kinks!"

As the last notes of the music faded, there was a moment's silence before a rapturous round of applause.

I rendezvoused with the quartet at the bar in the interval. Over glasses of sparkling rose, I learned that Marcie and Greg had known Ariadne since she was a youngster and she had spent some of her time growing up with them, particularly at their summer place in France. She was at present a microbiology student and researcher in a nearby university.

Alain was working for a wine importer but devoted a lot of time to the Rugby Union club in the town.

Again, we parted to our seats for the second half of the concert, an arrangement of Mozart's Symphonia Concertante.

I was once more distracted from the glorious music by speculative thoughts about the handsome Alain and the gorgeously curvy Ariadne and if they were in Marcie and Greg's nudist circle. My cock responded to my thoughts of course! I had a brief and bizarre image of me conducting the orchestra with an enormous erect cock flash through my imagination!

I saw them briefly after the performance, as they had a supper date at a restaurant in town to get to, and bad them a goodnight. I went to a bar across the road and calmed my fevered state with a large cognac and walked home across town. I need hardly add I needed to masturbate to a nice cum before I could sleep.

The next morning, I went for a 5km jog around the extensive open green parkland the town was famous for. On returning to my apartment, which is just across a landing from Marcie and Greg's place, I heard a booming "Bonjour monsieur!"

Alain, in a rugby club tracksuit and carrying a large sports bag, had just emerged from the flat and was hurrying towards the stairs. As I called 'Bonjour' to him, he called over his shoulder "See you later, after training!" I was unaware of any arrangement to meet up but felt instantly elated at the prospect of meeting him and Ariadne again. For it might be that they are in my new friend's nudist and sexually liberated circle!

After I had showered and shaved, including using my wet'n'dry intimate razor around my cock, balls, perineum and perianal, Marcie phoned me and asked if I was free to join them for lunch. Of course, I was delighted to accept!

I had coffee and read a newspaper in the street-level cafe in our apartment block. Though I endeavoured to remain cool, calm and collected, my thoughts kept straying to the afternoon's prospects. As a result, I had to keep using the paper to hide a rising erection evident through my chinos!

I quickly had another brief shower and changed into a pair of shorts (no underwear) and a polo shirt before calling into Marcie and Greg's.

It was Greg who answered their intercom and buzzed me into the flat. As I entered and closed the door behind me my first sight was of Greg. And he was nude! A fit man in his sixties with a fine cock and a set of large balls, he was instantly impressive.

"Ah! Alan; do come on in and make yourself at home! Do lose the clothes if you're comfortable with that" he called in welcome. And gave me a lascivious wink! Needing no more bidding, I cast off my trainers, dropped my shorts and pulled my shirt off over my head.

Not quite sure of myself in these circumstances, walking nude and semi-aroused into the spacious apartment, I thought offering a handshake was a bit ridiculous, but Greg forestalled me and gave me a welcoming hug, which brought our two cocks into contact.

As we drew apart, grinning he called "My dears, the delicious Alan is here! Do we all want tea? I'm putting the kettle on."

I strolled into the lounge area of the spacious and stylish L-shaped apartment, I felt oddly unselfconscious, even as my semi-erect cock bounced with each step. And there were Marcie and Ariadne, nude too of course. They rose from the comfortable sofas and each in turn gave me a hug and a peck on the cheek. Marcie gave my cock a swift squeeze too.

Nude, Ariadne was a veritable goddess of bounteous breasts capped with dark areola and prominent nipples. Her skin tone was cafe au lait and her slim waist gave way to wide hips and a neat pubic patch of dark hair.

I joined them on the sofas as Greg brought through a tea tray with biscuits. The sexual tension in the air was delightfully and rather absurdly contrasted with the prosaic and very English ritual of tea and biscuits!

"We'll have some lunch when Alain is back from training," explained Marcie "Just some cheeses, pate and salads and some pastries."

"It's lovely to see you again Alan," said Ariadne as she accepted a cup of tea from Greg. "I believe you've not long moved in next door. How wonderful it must be for you to find your gorgeous new neighbours are ardent nudists."

"Indeed, Ariadne, and so astonishingly welcoming, too!" I replied, also accepting my tea from Greg. The girls giggled and Greg chuckled! I just hoped I spilt none of the hot liquid on my erect cock!

"You've kept very fit, I see," continued Ariadne, frankly and openly appraising my body, not least my erect cock.

Emboldened by her attention, I parted my knees a little, so my cock was more visible and, truth to tell tried to suck in the small bit of belly I was unable to shift with exercise!

Sipping my tea from the dainty china cup I thanked her for the compliment, wondering if some equally complimentary rejoinder on her gorgeous figure would be in order.

But she continued, "I've been virtually part of the family for simply ages and of course eagerly anticipated when I would be of an age when I could be included in Greg and Marcie's sexual adventures! Never looked back, have we?" she smiled widely at her two mentors. Who in turn beamed at her.

"Let's have a bite of lunch, shall we, my lovelies?" asked Greg, standing up. "Alain is sure to be back soon."

As Marcie, Ariadne and I rose to our feet, they both gave me a hug and a little kiss on the mouth. As we walked the short distance to the table they both gave my arse cheeks a squeeze. Naturally, my cock stood to attention!

Even though the air was positively moist with sexual arousal, we sat down and were just going to start helping ourselves to the delicacies, when the door opened and Alain strode in! I made to stand up to greet him but he waved for me to stay seated as he boomed his hellos and stripped off his tracksuit. Nude himself in seconds, he hurried towards us.

As perhaps you can imagine of a rugby player, he was a strapping great chap with a commensurate set of genitals. A plump and circumcised cock with an immense ball sack was an arresting, not to say arousing sight. Amid a burst of chatter, he bent to kiss Marcie lingeringly and full on the mouth. Then he bent to do the same, lingering even longer with Ariadne and giving her tits a squeeze.

His cock, I noticed, was swelling and rising as he moved to Greg and gave his mouth a sensual kiss and a caress of his cock! He stepped towards me and looked in turn at each of the others at the table. Each gave him a smile and a nod.

"So shall I Alan?" he asked. I nodded and he kissed me open-mouthed with a brief encounter of tongues and a nice wanking motion stroke of my cock with his big hand! I'm sure I heard a moan, a groan and a gasp of sexual appreciation from our nude companions, but from which of them each sound emerged I couldn't tell.

"Tres bien mes amis!" Alain exclaimed "Nous somme.. Ah! I mean; we are all happy, sexy people!"

Amid general laughter, he sat down and for fifteen minutes we snacked away as though nothing sexual had just happened!

Then Marcie stood up and taking Ariane's hand said, "I don't know about you boys, but I'm randy as fuck and I've already sneaked a feel of Ariadne's cunt and she is as wet as wet can be!"

Greg, Alain and I exchanged lascivious smiles and stood up too. We looked at each other's erect cocks.

"My darlings," announced Greg "I do believe these glorious cocks and your luscious cunts are about to make five people very happy!" With that, he grasped my cock and Alain's in each hand and led us towards the sofas where Marcie and Ariadne were about to Soixante-Neuf each other, Ariadne below, Marcie on top.

We three chaps wanked each other as we watched the women.

"Let's get on the floor fellas, and follow the ladies' lead, shall we? You gorgeous hunks!" suggested Greg.

Alain quickly lay down on his back and I took up position on all fours with my cock over his face and his cock in my mouth.

Greg kneeled in front of me so I had two cocks to suck alternately.

As Alain sucked me deep into his mouth, I took as much of his cock as I could into mine. Right beside us on the sofa, I could hear the slurping and squelching as the girls were enthusiastically bringing each other to orgasm!

I realised they had disengaged when Ariadne replaced Greg and started to share the sucking of her husband's cock and licking his balls.

"Oh god, Alan I love to see a guy sucking on his cock!"

"Alan, do you mind if I rim you?" I heard Marcie ask, "I mean, that arse hole looks just so inviting, doesn't it Greg?!"

I took my mouth off Alain's cock to give enthusiastic consent to a rimming! And sure enough, I felt a hot tongue lapping at my anus. So with my cock in Alain's mouth and tongues on my anus I knew I would cum unless we changed positions. Through my groans and gasps of ecstasy, I somehow communicated this to the others. And they relented so we could disentangle ourselves.

"My god, fellas, that was hot!" Marcie exclaimed. "Who fucks who now though?!"

"Experiencing you two tonguing my anus was an incredible turn-on!" I said and kissed first Greg with an exchange of tongues, then Marcie similarly. Out of the corner of my eye, I could see Alain and Ariadne also kissing passionately.

"I think as Alan is the newest of our playmates, he should choose who he wants to fuck! Or indeed who he'd like to fuck him!" exclaimed Ariadne.

"I'd like to fuck Marcie and then Ariadne!" I said. "Or the other way around!"

"Cream pie or face and mouth cum?"

"Would you like the three lads to take turns fucking you Ariadne?" asked her husband whilst wanking our two cocks.

"Yes, please! All of it!" cried the youngest of us, "Fuck me; fuck me!"

The next few minutes became a blur. My cock was guided into Ariadne's tight young cunt by her husband, then into Marcie's sumptuous mature cunt by her husband. As I pulled out to spunk on her I shot my load onto her face and into Greg's mouth.

I think Greg then spit-balled Alain with my cum before fucking and cumming in Ariadne's cunt. Alain's huge cock pulled out of Marcie's mature cunt and erupted the entire content of his massive balls in huge amounts of spunk all over the rest of us.

So we were all covered in spunk and cunt juice as we collapsed onto the sofas.

As we caught our collective breath and came down from the sexual high, we sighed and took turns exchanging affectionate kisses.

"Welcome to our circle, Alan," said each of them, tenderly kissing me in turn.

"Thank you so much," I murmured to each as well.