This story begins about 8 years ago on a cool early morning run. Looking back, it's easy to see the significance of this moment, but at the time, I had no clue where this would lead. Settling into my early 40s had caused me to lose my lean, youthful appearance, and I needed to do something to reverse the progression. I had joined a local CrossFit and added in some running, both of which expanded my circle of acquaintances who were also trying to live a fitter life. I had recently joined a local running group, and many of us were preparing for an upcoming half-marathon, and in doing so, you find yourself running with people who have a similar pace and interests.

On this particular day, my current running partner, Mary, and I needed to take it easy since we were a week away from our race, and being able to slow down and taper our efforts is always a problem for us since we were both a little competitive. So, the leader of our running group saddled us with a newbie, which would force us to back off our normal pace if we were going to be nice and let this person stay with us. This newbie was in her early 20s, had been married for a couple of years, and as often happens, put on a little bit of weight from the comfort that follows being in a committed relationship. Still, Leanna stood about 5'9" and had a short torso with long legs, so you could tell she had the makings of a strong athlete. She had long reddish hair that she braided, which made her look like a Viking princess, but her demeanor was timid and quiet.

We had a nice conversational run where Mary and I told our stories about how we landed in the group, and Leanna shared what she could, although her breathing was more labored, so we didn't interrogate her too harshly. I was able to discern early on that she was someone I could relate to. There was something about her that was hard to explain, but I was really drawn to her, and being almost half my age and similar in age to my oldest son, I saw her as the daughter I never had. Or at least that's what I thought at first.

Over the next couple of months, Leanna and I would find ourselves matched up on most of the runs, and we just chalked our kinship up as the older and wiser staying youthful, hanging around the younger, and the younger gaining wisdom from the older. There were always others around us, too, but it seemed more often than not, Leanna and I were side by side a lot of the time. Over the next few years, Leanna would join me and a couple of other friends in non-running events like local CrossFit competitions and cycling events. She developed into a very strong and fit athlete and had more natural talent than she cared to let on. She also drifted in and out of our activities as she had a couple of kids, but she continued to maintain a fair amount of her fitness.

After knowing each other for around 6 years, it's natural that there would be events that we would all attend as families, and so I came to know her husband fairly well, and she knew my wife, and when we would have a get-together, it seemed that Leanna and I had this unspoken understanding of each other that transcended our regular families. Over the years, we spent the majority of our mornings together either running, strength training, or just taking walks on rest days. We talked mostly about fitness, training, and our friends, but sometimes we would visit about our spouses and our lives outside of our activities. My wife and her husband seemed to be very similarly extraverted, and Leanna and I shared very similar introverted, with deep-thinking qualities.

Most people understand that opposites attract when it comes to couples, which is the case for our marriages. For Leanna and me, on the other hand, we were so much alike. We would finish each other's thoughts, liked the same kinds of foods, and followed the same kinds of content on social media. There were times that my wife Beth would seem a little jealous of the time I spent with Leanna, so I always tried to low-key the fact that most of my training had evolved to just Leanna and me. This started a couple of years ago when I was about to turn 50.

Leanna had just had her second child and was eager to get off the baby weight when I announced that I wanted to run a 50-mile race for my 50th birthday. I was going to need a pacer to help me through the second half of the race, and Leanna was in no shape for that, nor did she really seem interested in running anymore. Her husband, Jason, was on a new kick to get healthy, and Leanna was helping him pick out some running shoes. And they posted about it on Facebook. I commented that he could be my pacer for the 50, and Leanna quickly texted me that if I would be willing to help her train, she would like that position. I was shocked and thrilled at the same time that I was getting my favorite training partner back for something really cool.

The training went well, and we added a lot of strength work in an effort to build durability above speed. And so we lifted weights at a wellness center that coached small groups of lifters, and Leanna and I ran some short distances during the week. On the weekends, I would go do my long training without her because she wasn't ready for the bigger distances, and she only needed to run ½ of the 50, and we didn't want her to overdo it. During this time, we spent a lot of time together just her and me. You would think we would have run out of things to talk about, but we just didn't. There were, however, certain topics that we avoided, and I'm not really sure why.

The main topic was our sex lives. I mean, it makes sense if she's half my age, and it's like a father-daughter kinship; that's not really something you talk about. The brief discussions on the topic typically stemmed from my wife making some offhand comment while drinking about how great our sex life was. Leanna once mentioned that her husband was her first and only, and never really played the field, being brought up very conservative. There was a time when I knew that Jason had just gotten a vasectomy and then threw his back out. I commented on how sad it was that they couldn't put their newfound freedom to good use, to which she agreed, but never took it beyond that comment.

It was during this time that I started to realize something. I was developing feelings for Leanna beyond what would be considered appropriate. Again, hard to explain, but I was so familiar with her; she had become like a second wife in my other life. She would be so thoughtful and encouraging when we were training, and I tried to do the same for her. We would buy little things for each other, and if one of us had found something we liked, like a new protein bar, we always bought two and shared our find.

We made it to the big 50-mile race day. Another buddy of mine decided to give this distance an attempt as well, so with his pacer, the 4 of us travelled together. The race was on a flat trail system that was over 100 miles long, and we were set to run from mile marker 100 down to mile marker 50. Picking up my pacer at the halfway point, Leanna was going to run with me from mile marker 75 to 50. Everything was going great, and around 31 miles in, I started feeling cheeky. That was my excuse for making an unusual request around mile marker 69.

When it was getting close, I asked Leanna to get out her phone and take a picture of the mile marker, which she gladly did. Then I asked her to text it to me so I could forward it to Beth when I finished the race. She looked puzzled, so I explained that it's one of our favorite sexual positions, so I have a ritual of taking a picture when I see the number and sending it to her. Leanna commented about how she and Jason didn't do very well in that department and probably needed to work on that. I told her the internet had tons of tutorials, but that porn specifically suited for females was probably best because it was more realistic. She seemed surprised, but at the same time interested, but we quickly dropped the subject.

Leanna and I finished the race and, in the months that followed, decided that running was losing its luster, and we still wanted to stay fit, so we converted to doing more strength work with a slight focus on bodybuilding. Not the kind of steroid taking, bulking kind of stuff, more like building some muscle and losing some fat to look leaner. Fast forward another 2 years, and those results were spectacular! 

Eventually, we both got really into lifting, researching the best methods of exercise programming and nutritional support. I started programming our training sessions, and she focused on nutrition research. Eventually, this launched into a little internet business where I wrote some fitness blogs, and she would edit my work. Our bodies were really starting to improve, and it appeared our bond was as well.

It was about this time that I really started having less-than-appropriate thoughts about Leanna. She was now a 29-year-old woman with a radically sexy, well-built body and the closeness you would expect from someone you've known for almost 10 years. I knew she was extremely loyal to her husband, and the same could be said for my marriage, but I would have been willing to insert some moral flexibility if the opportunity presented itself. For now, I would just have to be satisfied with her occupying my fantasy world, which happened often. However, there was something else that perplexed me from time to time. Leanna could have her pick of training partners, and yet she seemed to go out of her way to keep me close. What was that about?

One thing that had helped me sort things out throughout my career was to write them down on paper. There was a therapeutic effect as well as a perspective that was brought about when your thoughts made the move from your mind to something readable. That's why I started writing this story. It was to make sense of these random, unexplained feelings I was having, and that's when the big mistake happened. I had just completed my next fitness blog post, and in my haste to send it to Leanna, I accidentally did a drag and drop of this story. I didn't realize what I had done until the following day. Leanna was never great about checking email, so I needed to prompt her via text that I had sent something, but this time she had checked on her own.

It was on a Saturday morning, right before we were scheduled to lift, when I received a text.

"I think you sent me the wrong blog post."

"Was it an old one?”

"No, it was a story about us," She wrote.

Shit, what had I done? A quick run through in my head about grabbing and dropping files to the email, and I had come to the horrifying conclusion of my mistake. Now, what should I say? She was too smart to lie to, so I guess the truth was all I had left. Was she mad? Would I ever see her again? Would she tell my wife? So many questions, but for now, I needed to respond.

"Um, yeah...sorry about that. Guess I have some explaining to do during the warm-up."

There was a long pause; thankfully, I got a reply from her. 

"LOL, indeed you do...see you in 30".

I can't put into words what a relief it was to see that LOL. Leanna used that a lot to lighten the mood, and I guess this meant she was taking it lightly. By the time I arrived at the gym, she was already walking on a treadmill, scrolling through her phone. I hopped on the mill next to her.

"Good Morning!"

"Same," she said.

"Where do I start?"

She responded with, "No need to discuss that, the story was fairly complete on where this began; my question is, where is this going?"

Shocked, was this an open door? Was this a test? At this point, honesty was the best policy to follow.

"Look, Leanna, it's pretty clear that we have good energy together, and I don't want to do anything to screw that up."

"Same," was all she said.

Long pause. I had nothing. She finally let me off the hook.

"Look, we see a lot of each other. And while we are training, we see a LOT of each other (she meant our bodies). It only stands to reason that after 8 years, we would occasionally invade our dreams or fantasy life, and that's no big deal. No need to sound the alarm, ok?"

"Fair enough," I said, "but you asked where the story was going and that's a little harder to explain".

"Is it?'' she asked, "You remember when you said 'the internet had tons of tutorials' during that long race?"

"Yes"

"Well, I have learned that I like reading erotica". She confessed, "It seems like a more sophisticated way to rev up my engine, so to speak, and as we both know, the mind is a very powerful tool."

"It is," I agreed, "And you can do almost anything in your mind without causing major life issues."

"Correct," she agreed, "So, I know you haven't written an ending to your story, and that's for you to figure out. But for me, it's time to train, so let's get after it."

And that was it. For 2 months, we trained together, and it was like nothing ever happened except that she seemed a little less reserved in her communication. She did little things like using the F-word more often and a few more, "That's what she said," when I was referencing some training element that could be taken as sexual. Other than that, there was really nothing else radically different.

That was until that memorable morning in early December. Her husband travelled at least once a month for work, and when he did, we couldn't train during our normal early mornings and instead had to train at 9 am after she dropped her kids off at preschool. I showed up a little late to see Leanna on the treadmill. I tell her I'm going to the locker room to change.

"Don't," she says, and I look at her, puzzled. She stops the treadmill and steps off.

"Do you remember when we were running a lot, and on some mornings we just didn't feel like running?"

"Yes," I responded, "We would switch to a coffee run!" 

I was excited about the idea because coffee runs were my favorite. It basically meant that you needed to listen to your body to prevent overtraining, and if you were really feeling fatigued, you probably needed to rest. So we would pile into a vehicle and go to the nearest coffee shop and just sip coffee and chat.

"Well, I need a coffee run instead of lifting, so I'm driving," she said.

Off we went to a coffee shop and ordered our favorites. I asked about what had caused her to feel like she needed a break, to which she replied,

"It's not physical fatigue. I just didn't feel like I could mentally focus on training today. It's hard to explain."

"No need to explain." I said, "This is a mental game too."

"So, have you finished your story?" she asked, causing me to nearly blow coffee everywhere.

"As a matter of fact, no,'' I responded, "I haven't written another word since the big discovery."

"Not motivated?" she asked.

"No, it's just a challenge to write a believable transition for two good friends in good marriages to suddenly become sexually active without some type of major event."

"How about burning curiosity and a lapse in judgment?" She said.

Dumbfounded had to be the best description for my facial expression.

"Look," she said, "A while back, your wife had been drinking and she went on this rant about how great it was to be multi orgasmic and she blamed you as the culprit. I'm dying to know how you do it."

"Oh, ok. How graphic do you want me to get in my explanation?" I asked.

"Whatever it takes to transfer the meaning,'' she said.

"Ok, after a little foreplay, we basically go straight to oral sex. I'm really good at that, so I get her off pretty quickly. After that, she is really eager for penetration."

"Wait," she said, "Isn't she too sensitive right after her orgasm?" She asked.

"Yes, that's why I don't climb on and go to town. I just need to sink all the way in, and just being there gives her another. After that, she will have me move a little, and she gets another two or three, and as she gets acclimated, she needs more and more. By the time I'm pounding her real good, I'm done, and she's done. I get one really good orgasm, and she gets five to ten and sometimes more."

"Well, that explains what I've been missing. Jason never gets me off orally, and I rarely get off with him."

"So you have to take matters into your own hands, so to speak?" I ask. She nods. After a long, thoughtful pause, I ask,

"Ok, so now that I've satisfied your burning curiosity, but what about the lack of judgment?"

"Right!" she said, "Really, it's more of a rationalization and less of a lapse in judgement. So, you remember that I've never been with anyone but Jason. On the other hand, Jason had been with a few girls before me. So, he's at one time experienced some variety in that area, and I have not. So, I rationalized that the best way to even that score is to indulge in some variety and that would require someone that I trust and someone in a similar situation that I'm in, right?"

"Ok," I agree.

"And, we did so well at moving on after the story came to light, I rationalized that we would be able to make this a one-time thing and move on afterward, right?"

Trying to sound enthused but not overly excited, I said, "Sounds reasonable to me, and it sounds like you've given this some thought."

"I have,'' she said as she looked at her watch, a hint of a smile played on her lips, "and based on what you described, if we leave now, we can get this knocked out before I have to pick up the kids in an hour." 

Her voice was laced with a sense of excitement, and I could feel my heart racing in response. We rushed to her car, the tension between us palpable. We drove to her house, making small talk, something she did when she was nervous. As we turned into her neighborhood, she glanced over at me. 

"Scoot down, just in case." 

I obliged, feeling a little like a teenager sneaking around, and she smiled as she caught my eye. Once we were safely parked in the garage, we both just sat there for a moment, the air thick with anticipation. I could feel her eyes on me, and I knew she was waiting for me to make the first move. But I was frozen, my mind racing with thoughts of what was about to happen. It was she who broke the silence, her voice barely above a whisper. 

"Look, you know I still have body image issues and some loose skin here and there, but I want to be comfortable, so if you don't mind, I would like to keep my workout top on." 

She looked at me, her eyes searching for reassurance, and I felt a pang of tenderness towards her. 

"Of course, whatever makes you feel comfortable," I replied, trying to sound calm despite the turmoil of emotions inside me. "You're beautiful, Leanna, and I just want to make you feel good." 

I reached out and gently brushed a strand of hair behind her ear, my fingers grazing her skin and sending shivers down my spine. She smiled, looking relieved, and nodded. 

"Thank you," she said, her voice growing calmer. "I just...I don't know, I guess I'm just a little nervous." 

She looked down, her eyes fixed on her hands, and I could see the vulnerability in her. I took a deep breath and reached out, gently lifting her chin so that she was looking at me. 

"Leanna, you're gorgeous," I said, my voice filled with conviction. "And it's not just about your body. It's about who you are and what you do to me. You make me feel alive, and that's what matters." I smiled, trying to reassure her, and she smiled back, looking a little more at ease.

"No worries," I said, "I just need access to one area to make your dreams come true."

"I was hoping you would say that," and after a big smile, she jumped out of the car, and I followed in hot pursuit. She turned the corner into her bedroom and sat on the edge of the bed. I dropped to my knees in front of her, put my hands on her knees, and asked, "So we never really talked about foreplay or kissing or anything, so what did you have in mind?"

"In mind?" she said, "We've been doing this in my mind so much of late, I just need you to pull my leggings down and dive in."

Not needing to be told twice, I gently tugged on her leggings, she lifted her hips, and I was met with the sight of her perfectly manicured pussy. The soft, pink folds of her vulva glistened with a hint of moisture, and I could smell the sweet aroma of her arousal. I felt a surge of excitement and anticipation as I leaned in, my tongue extended, ready to explore every inch of her. 

I started with soft, gentle licks, teasing her clit and the surrounding area. She tasted sweet and slightly tangy, and I could feel her responding to my touch. As I continued to lick and tease, she began to relax, her body opening up to me. I could feel her hips shifting, her pelvis tilting upwards, inviting me to go deeper. As I delved deeper, she reached down and grasped my head, her fingers pulling me into her. She pulled me closer, applying gentle pressure, and I knew she was ready for more. I increased my efforts, my tongue moving in slow, sweeping motions, focusing on the areas that seemed to make her moan the loudest. 

When I found the spot, the one that made her gasp and arch her back, I knew I had hit the jackpot. The flattening of my tongue, moving side to side on her clit, was like a key turning in a lock. Her body responded, her muscles tensing, and her breathing quickening. I could feel her building, her orgasm approaching, and I knew I had to keep the pressure on. 

As she reached the peak, I eased a finger into her, gently tickling her G-spot. The combination of my tongue and finger was too much for her, and she let out a loud, "Oh fuck" as her body convulsed. Her torso crunched up off the bed, and she landed with a sprawled look of satisfaction, her chest heaving with exertion. 

In that moment, I felt a deep sense of connection and intimacy with her. It was as if we were two people, connected by a shared experience, a shared pleasure. And as I looked up at her, I knew that I was ready to dive deeper, to explore every inch of her, to make her feel like she was the only person in the world.

As I gazed into her eyes, I noticed the leggings still wrapped around her ankles, a reminder of the haste with which we had shed our inhibitions. I gently released them over her feet as she scooted up on the bed, her movements fluid and effortless. I dropped my pants, my hardness evident, and that's when I saw a flicker of concern dance across her face. 

"I know you're super sensitive right now, but you need to trust me," I said, my voice low and reassuring. "I've never caused you harm before, and I don't plan on it now." 

My words were meant to soothe her, to calm any doubts that may have been rising to the surface. 

"Whatever you say, coach," she replied, a hint of mischief in her voice. 

It was a term she used when I was correcting her form on a lift, but in this context, it took on a whole new meaning. I smiled, feeling a sense of trust and understanding between us. As I slowly entered her, I was met with a look of pure, unadulterated ecstasy. It was as if time had stood still, and all that existed was the two of us, lost in this moment of pure connection. 

I could feel her pussy contracting around my cock, a gentle pulsing that threatened to undo me. I gritted my teeth, determined to hold on, to savor this moment for as long as possible. Fortunately, she closed her eyes, and I was able to maintain some semblance of control. But as she rode out the waves of her next orgasm, I could feel my resolve weakening. It was only a matter of time before I succumbed to the sensation, before I let go and allowed myself to be consumed by the pleasure. 

And then, it happened. She started to move, her hips shifting in a gentle, insistent rhythm. I matched her pace, our bodies moving in perfect harmony. A few more thrusts, and she was cumming again, her body shuddering with pleasure. This time, I was able to increase my speed, to drive into her with a sense of abandon. As I picked up the pace, she let out a breathless whisper. 

"This is officially the best fucking I've ever had." 

It was all the encouragement I needed. I hit her with all I had, pouring every last ounce of energy into the encounter. And as I filled her up with my cum, I felt myself wilting on top of her perfect body, spent but sated. I don't know if she came again, but her breathing told me she probably did. As I finally pulled myself together enough to rise and match her gaze, I saw a smile spread across her face. 

"So that's how it's supposed to feel, huh?" she asked, her voice sweet and curious. 

I smiled, feeling a sense of pride and satisfaction. 

"Well, there's more to it than that, but I would say you're off to a pretty solid start. Too bad it's a one-and-done, but I'm not sure how you would justify a repeat," I said, trying to sound nonchalant even though I was still reeling from the encounter. 

She nodded in agreement, her eyes sparkling with amusement. 

"Oh, for sure, I just needed to know. Anything beyond that would be like having an affair, and you're too good a training partner to risk losing to some marital squabble." 

I couldn't help but agree. As we lay there, our bodies still entwined, I knew that this was a moment I would never forget. And as she added, 

"But if I ever mention a coffee run, you will know what to do," I smiled, knowing that this was far from the end of our story.

Plot twist...This is a true story except for one part. When I accidentally sent the story to Leanna, it was not a work in progress. It was completely written as you read it above. That means the morning I had to explain myself, the level of concern and risk to our relationship was much higher. When I arrived at the gym that morning, she turned to me, smiling, saying that instead of listening to my explanation, she wanted to go for a coffee run...and then the story came to life.