The first time I saw Kate, we were standing in front of the downtown office building where I had been working for the past five years. Her confident smile immediately caught my attention as she motioned for me to enter the revolving door.

I remember wishing she had gone first. I would have enjoyed checking out her cute figure a bit more. She looked to be just a few inches taller than my 5-3, with a trim, athletic build and pert breasts.

"What am I doing ogling another woman?" I said to myself as I rode up to my office on the tenth floor. I noticed that Kate got onto the express elevator that didn't even stop until 19.

"Snap out of it, Sarah," I thought as I walked into Ackerman & Williams, prepared for another day as creative director at the second-largest advertising firm in the city.

I spotted her several more times that week. A couple of times arriving for work and once in the coffee shop just off the first floor lobby. And each time I probably looked at her a little too long. There was just something about her.

I was a happily married woman and—as far as I knew—straight. I hadn't touched another female sexually since I was a young teen playing around at those notorious sleepovers. Oh, I had some nice orgasms then as I humped the leg of my best friend, Karen. But we both moved on to boys by middle school and I chalked it up as a rite of passage.

Karen had been out of my life completely for years, and I scarcely thought about those days. Except for the times when David, my husband of ten years, was out of town or we hit a dry spell and I would resort to self-pleasure

Then thoughts of Karen would flicker through my mind as I slowly brought myself along with light touches, first to my full round breasts... then my flat belly... and finally down to the curve of my mound, where I would stroke my hungry clit through the coarse hair that I kept trimmed in a neat triangle.

Oh, yes. Then I would think of Karen! How her thigh felt as she snuggled it against my pussy. How her hair smelled of fruity shampoo. How her warm breath felt on my neck.

But these times were few, as David and I had a rather active sex life, which left little need to find pleasure by myself. So my growing preoccupation with this new woman, who had captured my attention so unexpectedly, was a real puzzle.

We first spoke standing in line at the coffee shop a few weeks later. "Seems as if we've been running on the same schedule lately," came the voice from behind. I knew who it was instinctively, and when I turned around, two large blue eyes were smiling back at me.

I'm not quite sure why, but I felt my cheeks redden. I wondered if she had noticed me looking at her those times over the past few weeks. She had.

"I've seen you watching me," she said without making it sound like an accusation. "Do I remind you of someone?"

For some reason, the name Karen leapt to mind, though they really didn't look alike. Strange.

"Oh, no... I'm sorry," I managed, as I stalled for time trying to think of some way to explain why I had, indeed, been watching her. But she took me off the hook by extending her hand and smiling.

"I'm Kate. I work in IT with Pyramid Corporation up on twenty-five."

"Sarah," I answered, relieved that she was willing to move on. "I'm with Ackerman & Williams... advertising... tenth floor."

"Do you have time to take a little break?" she said, motioning to an empty table that looked out onto the street through a large window.

"Sure, that would be nice" I said, still a little worried that she might ask me again who she reminded me of.

But the conversation actually was really easy. Kate and I had a lot in common. We were both in our mid-thirties, married career women with no children. And as it turned out, we both had a wicked sense of humor.

From that first day, we spent a lot of time laughing. About our work. About movies. And especially about our husbands. It was amazing how some of David's annoying little habits that drove me crazy turned out to be pretty funny by the time Kate finished dissecting and analyzing them. She spent an equal amount of time poking fun at her husband Ted, who also worked in IT for another company that was only a few blocks away from our building.

By the time we'd met for coffee the third time, I felt as if I'd known Kate all my life. By then our conversations had turned to some serious things... hopes, dreams, loss... topics that went much deeper than casual friendship. I'd never gotten so close to anyone in such a short time. Actually, I'd never gotten so close to anyone, period.

Of course, the conversations eventually got around to sex. We talked in general about our sex lives in our marriages first. Nothing too detailed, but enough that I could tell Kate wanted more. It turned out that she had been fairly adventurous before she and Ted got together, and I had the sense Kate sometimes thought wistfully of that freedom.

When we talked about our pasts, I didn't have much to tell compared to Kate. David and I had been together for quite awhile before we finally were married. So I missed out on the usual sexual smorgasbord that many people enjoy in college.

It wouldn't have surprised me to learn that Kate had "strayed" a few times during her marriage, but we never went quite that deep. We never went nearly deep enough to get to the secret I was keeping, either. It would stay safely buried, as far as I was concerned.

One thing that we did differ on was where we had chosen to live. Kate and Ted lived in a loft in one of the up and coming areas just north of downtown, while David and I had chosen the suburbs. Of course, that meant over an hour's commute for me each day. But it also meant we had a spacious house on a quiet street with a swimming pool.

And it was the pool that I tempted Kate with when I invited her and Ted to drive out on Saturday. "Sure, you and I can sun ourselves by the pool all day and be decadent," I kidded, "and the guys can play golf. You told me Ted likes to golf, and we might as well get some use out of that expensive damned membership David pays for every month."

"Are you sure it'll be okay with David," she asked. "He and Ted don't even know each other."

"I promise. David will use any excuse to slip off and play golf. Besides they'll like each other just like you and I do. They'll spend the whole day talking about us."

"All right," Kate laughed, "It's a date."

Kate and Ted arrived as scheduled at 10 a.m. on Saturday. Ted looked cute as he struggled to get his clubs out of the small trunk of their black BMW. He was not quite as tall as David, who stood 6-0, but he had a nice fit look to him to go along with longish brown hair and brown eyes. His glasses made him look a little bookish, even on the way to the golf course.

I had already met Ted when I was having lunch downtown one day with Kate, and he seemed really nice, if quiet. I thought he was kind of cute, and I couldn't help but wonder if there was some kind of hidden fire inside beneath his rather bland exterior. He waved to me quickly, then went back to trying to extricate his clubs from the car.

David started walking down toward the car and met Kate halfway up the drive. They stopped for a minute to introduce themselves. The two of them were smiling and laughing, as David wrapped his arms around her and gave her a big hug. I could just hear him telling Kate how much I'd talked about her lately, because I certainly had. It was strange how she was in my thoughts so much of the time.

In just a few moments he had kissed her on the cheek and headed over to help Ted, while Kate joined me on the porch.

David and Ted shook hands, and it wasn't a minute before the two of them had hoisted the stubborn clubs from the car. David slapped Ted on the back and the two started talking animatedly. Kate and I stood on the front porch and watched them talk and gesture, and it was clear that they were going to be just fine.

"David seems really nice," Kate told me, "and he's really cute. He's got big hands, too," she winked, as she poked me lightly in the ribs with her elbow to make sure I caught her drift.

I did. And I looked at David a little more closely than usual, pausing to admire his trim, athletic build. He looked like he still might be able to run competitively, as he did in college, even though he was just barely on the right side of 40 now. And his dark hair and eyes accented a face that was, well... cute. Damn cute.

And he did have big "hands." Eight inches, to be exact.

David raised his arm and pointed at his watch, indicating they were short on time. And the two guys gave a wave as they threw Ted's clubs into the back of our silver SUV and headed for the course.

"Come on in and we'll get ready for our day of decadence," I laughed, as I opened the door for Kate. This time she went first. And I did admire her cute little ass. "The spare bedroom is off to the left. You can change in there."

I was already wearing my favorite bikini, a French cut model that left little to the imagination. It was a bright yellow and the bottoms rode high in the back and low in the front, providing a nice view one of my best assets. The top was pretty revealing, as well. My areolas were barely covered, but little else. I loved the color especially, because I thought it looked so good with my dark brown hair and eyes.

I had purchased the suit for a trip that David and I had taken to Florida a couple of years ago, and I had gotten a little thrill out of wearing something so revealing. But only in front of people I figured I'd never see again. I'd never worn it in front of anyone but David here at home. But today, somehow, I felt like being a little daring.

I hadn't gone "all the way" because I'd worn a matching cover-up until the guys left. I didn't want Ted to see too much too soon, and I didn't want David to wonder what I was up to. Actually, I didn't know what I was up to.

But I had slipped off the cover-up before going to the kitchen to mix the first two of what I expected to be a number of bloody-marys. And I was about to put the cap back on the vodka when I heard a low whistle behind me.

"My god, girl, you look good enough to eat!" Kate was standing in the kitchen door looking me up and down. And although I'd somehow wanted to show off for her a bit, I began to feel a little uncomfortable under her gaze that seemed to linger a few seconds too long on those places that defined my womanhood.

"What I wouldn't give for your tits." Kate's eyes locked on to my breasts, and I could feel my nipples hardening under the flimsy fabric.

"You don't look half-bad yourself, sweetheart," I said truthfully. Kate looked so cute and sexy in her tiny two-piece that was cut high in the legs and molded tightly to the curve of her mound. The suit was pale blue and looked delicious with her light brown hair and creamy skin.

"Too cold for you in the bedroom?" I laughed, looking directly at her hard nipples that were trying to poke their way through the little top.

"I guess it's pretty cold here in the kitchen, too," she laughed, not letting me get away with anything.

"Very funny," I volleyed back, handing her a bloody-mary and leading the way out the French doors to the pool.

As we stepped through the door, we were met by our German shepherd, Blitz. Obviously I'm prejudiced, but Blitz is a truly beautiful animal. He was in his prime at four years, full grown and weighing a little over 100 pounds.

He was not particularly tall for a mature male, but he was very muscular. He reminded me how strong he was every time I took him for a walk and he decided he didn't want to follow my lead. I pretty much had to hang onto the leash with both hands and dig my heels in until I could get him back under control.

Blitz was registered and almost perfectly marked, with the familiar black and tan coat. But he was distinctive, too, because of a larger-than-normal black mask across his muzzle. It made him look quite threatening when he barked or growled at someone he was uncomfortable with.

But I knew that Blitz was a real sweetheart who enjoyed splashing in the swimming pool and having his belly rubbed. One other thing that I knew about him that no one else knew, I planned to keep to myself.

As soon as Kate and I were out on the pool deck, Blitz started circling us, showing the shepherding instincts that had been bred in over the generations. He bounced around excitedly and licked our hands in greeting.

I scratched him behind the ears and he settled down a bit. But when Kate bent over to lay her towel across the chaise, he bounded over to her and stuck his nose right between her bare thighs. Before I could get him back under control, he had given her legs and crotch three or four big licks with his long tongue.

"No, Blitz, no," I scolded him. "Be nice to our guest."

Kate just laughed it off. "I've been trying to teach Ted that trick for years," she quipped.

But I was embarrassed by his unruliness. And it unnerved me a little that he had gone after Kate the way he did, thrusting his nose between her legs so aggressively. I felt uncomfortable for her, and for me.

I didn't want Blitz pestering us while we enjoyed our time by the pool, so I grabbed his collar and led him over near the fence. "Stay," I commanded, and he lay down looking chastised and forlorn.

"Sorry about that," I said, still a little embarrassed about Blitz's behavior.

Kate just smiled and patted the empty chaise next to her. So I sat down and joined her in rubbing sunscreen as best I could over all my exposed skin. Even though I have dark hair and eyes, my skin is quite fair and I burn easily. Kate looked as if she had the same problem. Finally, we took turns helping each other with the areas we couldn't reach for ourselves. And then we were ready to lay back, relax and sip our drinks.

For the next hour we talked and laughed and drank. The conversation was easy, as always. And today it became even easier by the time we'd finished our second bloody mary.

Occasionally, Blitz would get up from his spot in the shade and amble over to his dish for a drink of water. I watched him out of the corner of my eye, worried that he might get frisky again, but he behaved himself very nicely after my scolding.

Then Kate turned to me and said, "All right, my sweet innocent Sarah. What's the sluttiest thing you've ever done?"

"What?!" I gulped in surprise.

"You heard me. Surely there's a daring Sarah inside there who slips out every now and then."

I could tell I was blushing because I knew she was right. There was something deep down inside. But I wasn't about to let it out.

"Oh, my stories would put an adventurous girl like you to sleep, Kate. I don't want to waste your afternoon with my boring sex life."

She smiled knowingly at me and prodded a little more. "Come on, Sarah, you can tell me, babe. I'll keep all your secrets." By the time she'd finished, the look on her face told me she was serious about wanting to know... and about keeping secrets.

"Tell you what, Kate." You go first, then we'll see what happens. What's the sluttiest thing you've ever done?"

"All right, I'll go first. But don't think you're off the hook, "she warned.

"I had a little, unexpected adventure not too long ago when I was flying back home after a business trip," she began. "It probably wasn't the sluttiest thing I've ever done, but it would have to rank in the top five." Kate was smiling as she laid her head back against the chaise and began to explain.

"While I was waiting at the gate, I had been surfing the net on my computer. I found this web site that has a lot of erotic stories and started reading. Well, before I knew it, I'd gotten so worked up that I was about to slip into the ladies room and give myself some relief, if you know what I mean."

Kate glanced over at me and smiled again at the sight of my open-mouthed stare. "Then I noticed this group of really cute girls," she continued. "I figured they were probably flying somewhere for spring break, since it was that time of year."

"Girls?!" I interrupted, my eyes wide with surprise. "I didn't realize your interests leaned in that direction." I was looking at Kate in a whole new way at that moment.

"Oh, it's not like I'm a lesbian or anything. I'm barely even bisexual," she giggled at her little joke. "But I do appreciate a beautiful woman. Have ever since college."

I filed that little tidbit away for future reference, but I was interested in her current story right then. "Go on," I said as I turned on my side to get a better look at my friend, who I was seeing in an entirely different way.

Kate simply stared straight ahead, her eyes shielded by the dark sunglasses. "Well, there was this one really well-developed girl. She couldn't have been 20. I certainly would have fantasized about her when I got myself off in the bathroom, but wouldn't you know, about that time they called our flight. "I was really pissed at that point because I needed to climax--bad. But when we boarded the plane, this same girl ended up sitting right next to me! Her boyfriend was in the seat in front of her."

Kate turned her head toward me again, apparently interested in any comment I might have. But by this point, I was too wrapped up in her story to talk.

"Since it was a night flight, they left the cabin lights low after we took off. I sat there with my eyes closed, thinking about her ripe little body, about some of those stories I'd been reading online, and about what I intended to do to Ted when I got home. I just get so horny when I travel for several days in a row."

Kate looked over to me as if to validate the normalcy of her arousal. "Um hum," was all I could manage.

"So I was sitting there in the dim light, with the engines humming. Actually, my engine was humming pretty good by then, too. I pulled a blanket over me so I could, how shall I say, make the most of those naughty thoughts I was having."

"Oh my god, Kate! You didn't." She just smiled a little wider and went on.

"Well, my cute seatmate figured out what I was doing. She kept looking at the blanket where my hand was pleasuring my wet pussy which, by the way, was quite easy because I had gone commando on that particular day. And the poor girl was acting very nervous.

"Next thing I knew, she had pulled her own blanket over her and it was pretty obvious to me that she was doing the same thing I was."

I opened my mouth to say something, then closed it again, not wanting to break developing the mood that was right then. I could feel the stirrings of arousal beginning deep in my belly, and I wanted to just lie back and savor them.

"Finally," Kate continued, "I couldn't help it and I leaned over to her and whispered, 'Can I help?' She just kind of froze, but she didn't shriek or run off. So I slid my hand under the blanket and over to her crotch. She had undone her pants and pulled them down a little and moved her panties out of the way. I slid my hand underneath hers and found an extremely hot, wet cunt which I began stroking as if it were my own."

Suddenly, I became very aware that my own cunt was both hot and wet, and I was a little worried about the dark spot that was rapidly growing on the small crotch of my bikini. But I just pressed my legs together a little, first to hide it from view, and second to put a bit of pressure in just the right place.

Kate glanced over and noticed how I was squirming on the chaise. But she just went on with her story.

"When I started to touch her pussy, I leaned toward her a little more so I could feel those beautiful mounds of hers against my arm. She moaned softly when she felt the contact. And I whispered to her, 'I could use some help, too.'"

I think I moaned a little, too, when Kate said that.

"So the girl slid her hand under my blanket to cup my hot, slippery cunt and started fondling it, just the way I like. It only took a couple of minutes before we were both cumming... biting down to keep from making noise. "

"Fuccckkkkk," I couldn't help but whisper.

"After she came, she kind of slammed her legs together and pulled her hand from my crotch. I guess she realized what she was doing. I smiled, thanked her and licked my fingers. When it was time to exit the plane, she grabbed her boyfriend's arm and clung to him, I guess to be protected from any more wicked women she might encounter on her trip."