Thanks to Amber T for editing.
In the early afternoon Rod called us with advice for his party. It would start about four with cocktails on the lawn, then a buffet, entertainment of an unspecified kind, and then, he promised, 'what you'd expect as a swinger's party.' He recommended something for Sara that would cover everything, but still be sexy and leave her 'accessible.' That sounded good to me, and to her.
I had just made coffee when Sara swirled downstairs in a white dress with a blue flower pattern, sleeveless with ruffled edges to all the seams. She was naked underneath. The skirt seemed uncharacteristically modest, just below the knee, but when she twirled for me I saw how thin and filmy the fabric was. It was held together in front only by a tie; she showed me how she could adjust the V-neck as low as she liked by redoing the tie. The V-neck was matched by a V-hem on the skirt, opening it up in front where it counts. I had her open it until the V reached her navel, and pushed the filmy fabric aside to reveal her bountiful breasts. Her nipples were already stiff. We had our coffee with them exposed. I mentioned that a lot of guys would be looking at her bare tits tonight. She replied, "I can't wait. You know how I love to expose myself, and tease and flirt."
"You'll do a lot more than that. I have a feeling that a lot of guys are going to fondle those tits, scratch your nipples, suck on them, then untie your dress and do wonderful things to your pussy."
Sara tucked her feet under her chair and leaned forward. "You're gonna watch me get fucked again, aren't you?"
"Yep." I grabbed a nipple in each hand and twisted; Sara gasped.
"If you don't stop, we'll never get to Rod's." Reluctantly I let go, and we set off.
In the car Sara turned serious. "Jim, we have to talk about something. So far our adventures have all involved me - exposing myself, getting fondled, sucking other guys' cocks, taking a bunch of them in my pussy. I'm high just thinking about it. But tonight it'll be your turn. I'm sure there'll be women there like me, who'll flirt and flaunt, who'll want to get that wonderful cock of yours inside them."
"Obviously I'm looking forward to that. But when it comes down to it, how do you feel about me doing other women, being unfaithful?"
"I guess I can't object, after what I've been doing, I've been such a total slut. But really, Jim, I want you to enjoy sex, even with other women. Unfaithful means doing things your partner doesn't want you to do. I'll get to experience you making love up close, the way you've been experiencing me. Remember I love you, I want you to be happy and squeeze as much joy out of life as you can. You can have other women, but it's better if I'm there and I can watch you enjoy them, even participate in the whole experience. I don't want you falling in love with anybody else..."
"I think that's the way Rod has it set up for tonight. No sneaking off, he said, everything you do is in the open and in front of everybody."
"Jim - up to now I've only been with guys I knew, at least a little bit. Tonight there will be strangers, people I've never met until today, and I'll expose myself to them, I'll let them fondle me in front of everyone, they'll fuck me, I know it. It's like walking up to some guy and saying 'Hi, I'm Sara, let's fuck.' It's so much more brazen, I'll be naked with some guy I barely know churning inside me and lots of strangers watching. I'll be a sex object on display. God, I'm soaked already."
"What's it like, fucking guys you aren't in love with?"
"Um, it's different, not like doing it with you, it's not making love. It's more about the raw feel of sex, the sensations, like a drug but better. You'll see when you do it tonight."
I drove on, one hand on the wheel and the other on Sara's soft thigh. Rod's house looked like an ordinary suburban place, set a little further back from the street but nothing out of the ordinary. A pimply-faced kid came up, took our car keys, gave us a card with a phone number and drove off. Either Rod had valet parking or our car was just stolen. But no matter, we had other things on our minds. Rod greeted us at the door, probably the only person we would know at the party. "Come on in! I owe you both after what I've been doing with Sara."
Sara gave her fuckbuddy a big kiss and he diverted us to his huge kitchen, where we met his wife Kirsten. She seemed quite a bit younger than him, a tall statuesque Scandinavian with a cute upturned nose, straight blond hair and a svelte figure. The surprise was what she was wearing, just a little vest of sheer almost transparent material, unbuttoned, and a skirt reminiscent of a tennis skirt but riding low on her hips and reaching barely below her crotch. Below, long slim legs stretched on forever. She saw us gawking and explained with a lilting accent that the guests had to cover up, at least at first, but the hostess could take some liberties. She said that she's a hopeless exhibitionist anyway, so today was a good day. They met when she came from Sweden to work in Rod's software firm, because she was impressed with the originality and challenge of his designs, but eventually another kind of software had greater appeal.
"Kirsten, dear, I've found that Jim is a tit fan. Go ahead and show him yours."
Even though I knew that sex was the theme of Rod's little gathering, I was surprised when she pulled back her vest and thrust out her chest toward me, small perky breasts with impossibly wide nipples already erect. "She gets off on exposing herself to strangers. Look, her tits are stiff already. Go ahead, Jim, touch them, fondle, suck."
I exploited Kirsten's offer of her breasts and Rod's invitation. Sara stared at those nipples, moving up beside us to get a good look; Rod came up behind her and began squeezing her breasts through her thin dress. Rod pointed out that in some ways Kirsten is a lot like Sara.
I had no inhibitions. I sucked one stiff nipple into my mouth while I pinched the other between my fingers and pulled hard. Kirsten was getting more and more excited; folding her hands behind her head and pulling her shoulders back, she squealed, "Rod, look what he's doing to me. I just met him, and he's working wonders on my nipples. I can feel his soft lips, his hard teeth, his tongue moving on the tip. He's so strong and confident. Aah, it's so tingly, I'm getting soaked..."