This involves true MMF sex - if uninterested, no need to keep reading
As summer progresses, the lake water grows warmer and mid-days hotter, making arriving earlier in the morning practical. There was only one car in the lot, not too surprising at this earlier hour on a Sunday. A certain faint scent was in the air, resembling what I had been smoking just before leaving the house, growing a bit stronger the further I went from the parking lot.
Walking to the accustomed spot, entering the grassy area, I saw a married couple who had been coming here for years in one of the more hidden 'alcoves' only after having walked by them. Such spaces are more concealed from outside, providing a sense of privacy that is not really the same as hidden, especially from those closer to the lake. Which is where I was, spreading out my blanket, before stopping.
They had not noticed me, unsurprising considering how hot the blow job looked to be. The view was too sexy not to keep looking at, as public sex here is really quite rare. An open wine bottle along with the lingering scent of weed explained a lot, not that any explanation was required, attention concentrating on what was happening.
With a growing cock, my eyes wandered a bit, seeing clothing next to her. Almost as surprising as the continuing blow job, there was a pair of heels, some white stockings, a fancy and frilly white pair of panties with matching lace bra, and a dress. Compared to normal female nudist attire, this was very fancy to an extent that helped at least potentially explain what was going on.
Many women, and definitely Cathy, often come to the lake without underwear. Nudism is straightforwardly simple in many ways, most definitely including not wearing unnecessary clothing, which for many women includes wearing a bra. Not that underwear is always unnecessary, but seeing a woman simply pull her sun dress off or step out of her shorts without panties is normal, not a prelude to anything but being naked.
Meaning that the pile of clothes pointed in a different direction, nude though they were now. I was quite uncertain what to do, this being a true rarity, having seen a couple having sex like this only once. Maybe not quite like this, as that other time most definitely involved wonderfully explicit sex, her legs spread wide and pussy lips dark and swelled, nicely framed by her bush as they fucked. After seeing what was happening, I left the room more than a bit embarrassed, until after a few minutes, she came out to say that nothing had happened to care about.
Today, my presence was a bit more awkward in terms of just discretely leaving. Not just since they would likely be disturbed, but also because the sight was decidedly erotic. He was reclining on his elbows, head back, with her stretched out on her side, one leg drawn up over his. Providing a wonderfully revealing beaver shot, a view that added to the tempting way my cock kept swelling.
This was by no means the first occasion seeing her pussy exposed openly, though it was becoming the longest interval looking intently at it. The reason, one that kept my attention totally focused on the sight, this was the first time seeing her obviously turned on pussy. Her labia were more open and darker around the outside, providing a lovely view of a nicely glistening pink entrance, proof of her horny state. Proof that led to straightforward speculation about its availability.
I have seen many women's pussies at this lake over the years, but that is not the same as a pussy beautifully ready to fuck. It is not difficult to grow accustomed to seeing a woman laying with her legs open as you walk by, or bending down as she gets a towel to dry off. Pussy is pretty, so the attention the view attracts from men and women is understandable, as long as kept to a polite level.
A level running straight into their lack of politeness at having sex in public. She turned a bit, right hand sliding between her legs before she leaned back, his leg pressing as she touched herself. Her pussy was no longer so completely exposed, but the way she was going down on his rod showed off her hanging tits, nipples as hard as when coming out of cool water, though for another reason now. Seeing women with erect nipples is much like seeing their pussy, with the same understanding that the admittedly sexy sight has nothing to do with horniness.
Being taken deep, he lay back flat, a hand stroking her hair as her lips reached the root of his rod. When she started fondling his sack, it almost seemed as if she knew that they were being watched, enjoying the opportunity to show off. That may have been wishful thinking coming from a now quite stiff cock, as her head had been consistently turned to watch his face, which undoubtedly showed just how completely he was under her spell. A spell plainly affecting both, naked and visibly turned on in public. A spell working its irresistibly entrancing magic on me too.
Slowly, unable to find the will to stop, my hand began to slide over my bulging jeans covered length, letting voyeurism take control. Something only done for the second time in my life, the first decades ago. A couple of weeks after breaking up with my first girlfriend, very high late at night coming home, seeing a woman undressing in front of her third story apartment window as a storm approached. Good weed makes me horny, and this had been very good weed, in large amount. As soon as I started watching her, not the storm, my cock became wonderfully hard, overruling any concerns about politeness.
When her hands went to the bottom of her shirt, my hand went to my downward pointing cock, leaning against the wall. Pressing its length, the sensations were incredible as she pulled off her shirt, revealing bra covered breasts. She unbuttoned and unzipped her jeans, then her hands went behind her back. After removing her bra, she closed the blinds, bringing to an end my first voyeur experience.
Today was an entirely different level, and not exactly voyeurism in the sense of peeping. Sex creates an attraction to anyone near it, meaning I was being enticingly pulled in, the sight growing even sexier with stroking becoming part of what was going on. I was so focused on her that it took me a while to notice that he had shifted position, now looking at me with a quite stoned and very horny expression. He knew what was going on with my cock, apparently finding my looking at his sexy wife a nice addition to getting head in the fresh air.
Cathy lifted her head from his cock, turned her face a bit, seeming unsurprised at my standing there. To my delight, her horny expression did not change as she looked at what I was doing.
"Why don't you get undressed? We don't care that you are hard" she said in a husky voice as sexy and new as seeing her wet pussy had been, with much the same incredible effect on me. Her husband adding "After that show, who wouldn't be hard?" as I removed my shirt and pants, cock jutting. Both had watched intently when my cock was first exposed. A thrilling reality, no longer uncertain about their desire.
Joining them, being close in the semi-private space adding another bit of excitement, Eric reached over and popped open an unnoticed bottle of sparkling wine. Saying they didn't bring glasses, he took a long swallow and handed the bottle to Cathy, who drank quite a bit before handing the bottle to me. Returning the bottle to Eric, our hands brushed. Remarking that I thought something had been smoked when arriving, they both looked at each other and grinned.
"Promise not to tell?" she asked, leaning forward a bit, her shoulder lightly touching mine. She sat straight again to drink, then put a spread hand down against my outer thigh when passing me the bottle.
"Drink quick, like me. You never know when someone else might show up." Taking her advice and likely hinting about things to come, I did drink more than the first time before giving Eric the less than half full bottle. This time, his hand definitely went over mine, creating skin contact between all three of us. Watching as he drank, I saw how Cathy now gripped his almost erect cock, a very sexy sight before taking the bottle.
When she finished drinking and gave me the bottle, she smiled, hand going to the inside of my thigh, making me sigh. "Like that?" she said, a statement that applied to both men. Smiling at each other, we said yes in unison. I drank about half of what remained, then said Eric should probably finish it off, without thinking about how it would likely affect him.
Cathy giggled, her cheeks a bit flushed, saying he should sure wanted to get finished off, but not yet. Stroking along her leg, I asked who should get finished first. Her eyelids fluttered, head slowly sinking while giving a very soft moan as both Eric and I began stroking along her soft inner thighs, teasing her.
"We were at Pat's birthday until very late" Eric told me, explaining the clothing, the bottles of wine, not to mention how they had likely remained in such a party mood. Cathy added "We thought the lake would be nice to visit before going home."
Pat being Cathy's sister, something unknown to me for years. I had known Pat for a couple of decades, as she also liked floating on an air mattress for long stretches on the gorgeous cloudless days of high summer. She had pale pink nipples, generally shaving her pussy smooth. Not really my taste, though allowing for a nice view of her pink labia. Only after knowing Cathy for a couple of years did she mention being Pat's sister, surprising me quite a bit.
