Sunning myself on a naturist beach near Hastings I was joined by a younger man, late twenties, on his first visit. He settled a few feet from me by the rocks on the western end of the main beach. We chatted in general terms, with no sexual reaction neither way, sharing a can of cold drink (of which I had several). A while later an elderly couple both wearing swimsuits walked by; the man stopped and started to berate us, accusing us of disporting our bodies in public, and no doubt indulging in disgusting homosexual acts. Before we could reply, his clearly-embarrassed wife pushed him on, telling him to leave it. They disappeared, leaving us to ponder the man's prejudices. We joked about the reference to homosexuality, asking each other where we stood. Strangers though we were , we felt able to confess our status quite freely: He was essentially gay, but had had the odd girlfriend at uni; I admitted my bi-sexuality, being recently divorced but having regular gentlemen friends. This honest chat stirred his cock into a nice semi, the foreskin pulling back to reveal the first glimpse of his pink glans. I was still flaccid, but felt the first stirrings at the sight of his response. At this point the wife of Mr Rude appeared: "I must apologise for my husband's awful rudeness earlier...he has this thing about nakedness...I hope you were not too upset." We both replied in our own way that we were not too bothered, we accepted that folk had different ideas, and eager to respond positively to her apology. She was standing a few feet in front of us; I asked if she would like to join us for a cold drink, assuming she would politely decline and move off. "Thank you-my husband has gone off to play golf, I would appreciate the company." She shook out a towel from her backpack and laid it in the space between us, taking the can of Sprite offered. I asked if this was her first visit to a naturist beach. She had been to others with other friends in the past, but was now very much constrained by her husband. She sat chatting between us, giving me chance to look her over;-probably late fifties, a little overweight, fulsome breasts, not over-pretty legs but an open attractive face. Having introduced ourselves, Byron ('call me Bry') took the initiative and suggested she might like to take off her one-piece swimsuit. "Should have worn my two-piece, could have taken off my top...not sure about going completely nude with you two!" We both laughed, telling her that on a naturist beach it was normally all or nothing. "Oh, all right!"...and off it came. With the unexpected gift of a nubile naked woman barely a foot away from each of us it was no surprise that we both stiffened rather obviously, Bry sporting a full-on erection. "Oh my goodness, look at you!" She then looked down at me and my growing willy: "Been a long time since I had that effect on men!" I started stroking her right breast; Bry moved closer and pressed his hard cock against her left thigh....she responded by stroking the fully-exposed head then getting hold of his balls; I though he was going to cum there and then, but with a look of sheer pleasure he managed to hold back. My hand had worked down to her thigh, and almost as an invitation she lay back on her towel to reveal a full tummy sloping down to a trimmed bush: It was there that my hand slowly worked it's way until I felt the tip of her clitoris, with a satisfying gasp from her as I gently massaged it. Bry was sucking on her left breast, her hand still clamped on his cock. Mine was now fully hard, and I adjusted my position so I could rub the tip on her other tit and carry on working my fingers around in her cunt, which was satisfyingly moist. Bry knelt up and offered her his cock, which vanished into her mouth without hesitation. I could see from his face he was not far off, so not knowing how he would respond I tapped him on the shoulder and indicated her vagina. Gay or not, he pulled away from her mouth and quickly repositioning himself, tried to enter her. Clearly no reluctance on her part she helped him in until his full length had vanished inside her. A few enthusiastic thrusts and he came, gasping 'oh no, oh no'....to his credit he kept on going for another minute before sliding out and collapsing back on his towel. My cue: I slipped in easily to her now well-lubricated cunt (sloppy seconds? no problem!) I felt that lovely sensation you get when first filling a vagina. I was not usually a quick cummer but knew I would not last too long, a feeling reinforced when I felt Bry's finger exploring my bum with the same rhythm with which I was fucking the lady Evelyn. Slowly but surely she started a bodily response to my thrusting and was well on the way when I came, an incredible feeling as I shot several pulses of semen deep inside her; I managed to keep going and was rewarded when she started a noisy writhing and reached an orgasm just before I felt myself start to soften. I reluctantly slipped out, my cock head followed by some of the seed Bry and I had spent so much pleasurable energy putting in. We both kissed her all over and then rested for several minutes. "I can't believe I just did that!.....but I'm glad I did, it felt good." We boys both responded by telling her what a great body she had and how much we had enjoyed making love to her (very polite!) At this point she said it was time to go; using her towel to clean up her naughty bits she replaced her cossie, kissed us both on our flaccid cocks, and went on her way. The day was still relatively young, but what followed later is not part of this story. If there is anything to be learned from this, it is always be ready for the unexpected!