I'm Pete. Janet and I had been married 10 years. We are both in our mid 30's; we met in college and married soon after, having been in best friends since. Janet is about 5'6", with a pretty face and sleek athletic figure, long red hair and green eyes. I'm just over 6", 180lbs, brown hair and green eyes.
When Covid hit, we set up a gym in a spare bedroom on the first floor, and have used our old "commute" time to coach each other into shape. I'm tall and mostly thin, 6'1", fighting that dad-bod tendency and happy to report some success. I work for myself doing IT consulting, in an office I set up in a spare room; Janet does HR consulting, from a desk in our kitchen. Even working from home, we kept to our routine of waking up, coffee, showers and getting dressed. At lunch we 30 mins of stretching and body weight along with a Youtube video, then back to work.
We were always sexually active and compatible. My thing is getting her to orgasm as often as I can, I have great stamina. We are comfortable with each other.
One day the mailman knocked on our door and complained our car was blocking the mailbox, delivery would be difficult and if he was running late he's have to skip our house. We looked to see a white Prius at the end of our driveway. We realized it was our neighbor's renter, a grad student at the state college. We told the mailman we'd take care of it.
Janet offered to go next door and talk to the kid, and, pleased to have one less hassle to deal with, eagerly agreed.
A few minutes later she returned, and explained that Mike (the student) agreed to park elsewhere, and he was a physical education major, who attended college in the morning and worked at a local Gym in the afternoons. "In fact" she continued, "He offered to stop by a few times a week and coach us over lunch".
Janet was proud that she'd gotten us a private coach, so I said "That sounds exciting! Nice work, sweetheart!" even though I was hesitant, not sure why. She punched my arm and said "A workout will do wonders for you, you sexy dope!" I laughed at the playful jab.
Mike stopped by the next day, and we moved to the gym room for our first coached workout. Mike was about 23, same height as Janet, lean, fit and muscular, a tiny waist and tight ass (like a 23 year old) and fairly handsome, his blond hair cropped short and he looked like any trainer you might find at a gym. Nothing intimidating, no tattoos, but no real personality either. He greeted us formally, in sweatpants and a muscle shirt, still sweaty from his morning sessions I guess, and we started working out immediately. He guided us though a stretching and flexibility routine, then we moved to push ups, squats, and other body weight and balance work. He corrected our form, posture and after 30 mins checked his watch, gave us some feedback, and left. I will say that he was an excellent trainer, I felt sore in muscles that I never did before, and Janet seemed fatigued and a little frustrated at his constant corrections, but I reminder her this was her doing. She punched me in the arm, playfully, and we went back to work.
Mike started to stop by daily, and at first Janet was annoyed by Mike's refusal to allow any short cuts: Hold position for 1 min was a full 1 minute, no quits. It made the perception of any progress slow and painful. Janet talked to me about stopping, but I needled her to keep it up, (it was her idea) and in fact after a month she was really getting into it, and after 6 weeks we both noticed changes in the mirror. Mike started giving her a lot of compliments (he ignored me) and I noticed that she really lit up and tried to earn his approval. She was looking great, and she obviously liked the attention of a younger man.
That's when things changed.
Our "gym" room had the usual motivational posters, framed and hanging around, mirrors and pictures of Janet and I, etc. Even when I wasn't looking directly at her, I could see Mike's hands on Janet from any angle reflected in the glass of the pictures, or mirrors, surrounding us. I noticed he put his hands on Janet in ever more intimate locations on her abdominal muscles, shoulders, thighs, legs, etc, when he thought I wasn't looking. He left them there longer, too. Janet didn't stop him, she even intentionally slipped or lost balance, or held the wrong position, to earn a "correction" from Mike. It went on for a week or two to the point where he was frequently finding a reason to put his hand on her butt, or near her breasts, etc. After the workouts I did notice her blushing or red-faced often, she said it was due to exertion. In truth, she lit up when he was there, she made a point to watch him pull-up, or drive away, and seemed to find any excuse to go talk to he when he arrived or was outside for any time. She acted like a schoolgirl with a crush. It was obvious.
About this time I also noticed she was texting more than usual, sometimes putting her phone away quickly when I entered the room. I waited one night while we were in bed, and feigned sleep, when I heard her put the phone down to get up and go to the bathroom. As soon as the door shut I grabbed the phone and prevented the locking screen from activating, quickly searching for her most recent chat, and found where she and Mike had been texting. I added myself as a hidden participant (disabling notifications on my phone) and let the history transfer to my phone, then locked it and put it back before she returned.
Well, I was dying to read through, but I waited until morning and over coffee, read the entire thread. It started out innocently with schedule and fitness questions but morphed into playful teasing and suggestive complements: "Your form shows off your excellent breasts" and she replied "I loved the feeling of your strong hands, catching me when I lost balance" and it got worse from there. I saw pictures of her posing in yoga pants and tee, showing off her progress, but also her tits, and ass, Mike responded with flexing pics, his arms, chest and butt. Mike also talked about getting together with Janet, without me, for "personal training" but she brushed off those advances (for now), but did not discourage them either. In fact, I think she was close to making a choice to cross that line, from flirting to cheating. The realization set in that I might loose her, it shook me to my core.
I felt a little anger, betrayal, and jealousy, that she was in lust, and seriously turned on by Mike and not me as much anymore, it seemed. I was also afraid of doing something stupid that would cause her to make that call, to meet him in secret and damage our relationship and marriage permanently, maybe even end it. I thought about how to save us, not sure what to do. This was new territory. Do I confront her, and come off as jealous? Or worse, admit I was spying? No. Should we move away? No, she'd never go for that. Should I cancel Mike's coaching? No, that would give me away, and he would still be next door.
On the other hand, I tried to think of a scenario where we did a three-way, or a sexy massage, or something, and the thought was a little exciting, I admit. I never really considered swapping, but the idea of watching my perfect wife's perfect ass getting serviced by a young bull was oddly arousing. I tried to normalize that idea but in truth I was scared. I'm not the "share my wife" type, even if she'd go for it. I shook my head to get that image out, and tried to think of anything else.
People do more thinking with their dicks or pussies, and more often than anyone will admit to. When I met Janet, I was hopelessly infatuated with her from the first moments, and my brain was in a fog for months. I didn't know or care who she was, if she was dating, or anything. I had tunnel vision and a one-track mind. This shit happens. Luckily for me, it hit me young, and was more than a momentary infatuation. And, she was interested. The rest is history. That same blind lust seemed to be taking over Janet's logical brain, in her new found attraction to Mike. Lust was a powerful force. She was slowly giving in to it.
Saturday morning we were sitting at the table drinking coffee, I was hoping to get Janet to spend the day with me, a little adventure, a nice dinner, just focused on her. No Mike. Just to remind her that I loved her, and to focus a little on her needs. I scanned the web for concerts or events schedule today, and started to make a plan. She was sitting across from me, looking amazing but focused on texting (with Mike, as I could see the chatter on my own phone). It must have been a pretty intense conversation, she was oblivious to everything else. I make a point to not read it while she was nearby, as to not giver her any idea that I know they were talking. But, I risked a glance, casually.
Mike: I have the house to myself today, just come over.
Janet: As if. Do you think you could handle a woman like me?
Mike: I'm so hard for you. You are so tight and sexy. Lets fuck right now.
Just then, she looked up, almost dropping her phone.
Startled, I look up as well. "What's wrong" I asked?
She looked over at me, staring into my eyes. I held still, giving her time to collect her thoughts. She took a deep breath, I thought I saw the beginning of a tear in one of her eyes. She came to a decision, I could see it in her eyes.
"I want to sleep with Mike" she said, in almost a whisper. As if she was admitting it to herself, as well as informing me.
I was stunned. Like, deer in the headlights stunned. Almost involuntarily, I quietly said "What?"