"Fuck yes, give it to me!" I had lost count of how many orgasms this was. My eyes flew open so hard that it actually hurt. I could barely process the sensations coursing through my body as the world came back into focus. My heart raced, and I felt an overwhelming rush of exhilaration mixed with exhaustion.

Jon, the stud who was pleasuring me, was my husband. He would be a stud to any woman, so I was lucky that he was mine. Unfortunately, these orgasms were different from the usual. Unbeknownst to my husband, he had opened Pandora's box, and I was currently fantasizing that another man was driving into me, fucking me into oblivion.

My husband's biggest fantasy has always been to see me have sex with another man. When he told me this, I didn't freak out like some women do, screaming, "You just want an excuse to fuck other women." Mostly, I figured, if it turned him on, and I received the benefits from his arousal, then who was I to judge?

I admit that the fantasy play was turning me on to the point where I really looked forward to having sex with another person, in fantasy only, of course. Was he serious? I would ask myself. The thrill of the fantasy lingered in my mind even though he had never stated that he actually wanted it to happen for real. But the thought of actually acting on it sent a rush of uncertainty through me. If the opportunity actually did appear, I'm sure I wouldn't be able to go through with it. This was just a game we were playing together, wasn't it?

I have always been into fitness, so when my husband started making enough money so I could stay home, the gym seemed like an obvious place to spend my time. Fitness wasn't my only reason; I needed the human contact along with the interactions that I was missing from when I had a job.

I had worked out for three months on my own, doing what I knew to do while watching others for any alterations I might like. Eventually, as I progressed, I decided that I wanted to have a personal trainer help me reach my goals, which is what started my path down the road to intense desire and overwhelming temptation.

Jon teased me when I hired a trainer, asking if it was my way of getting another man's attention. "Should I be worried?" he would tease. "Sweetheart, you could probably teach the trainers more than they can teach you, but if you need someone to push you, go for it."

"You have nothing to worry about, babe. You should see some of the girls he works out with,” I told him. "He has plenty of prospects to choose from. Besides, I'm a happily married woman.”

"You might be married, but he's still a man. Any guy with two balls would love to get between a married woman's legs," he told me with a smirk. "Just remember, if he does score with you, I want pictures," he teased as I rolled my eyes. "Seriously though, be careful. I don't want you getting taken advantage of by some stud whose goal is to see what your leggings would look like on his bedroom floor."

Maybe I should have yielded to his warning, but I knew that I wouldn't allow anyone to take advantage of me, or so I thought.

At the gym, Shane turned out to be an excellent workout partner, and I felt an immediate connection with his personality. However, it never occurred to me that he might desire anything more than our fitness sessions. I was oblivious to the fact that he would have relished the opportunity to extend our cardio to his bed. As we exercised, I soon noticed a spark between us. Nothing brazen; mostly, we just flirted. He started commenting on my body and how my curves were in all of the right places, and I started admiring his muscles more than I used to.

Jon started to notice that I was buying more revealing leggings and shorts. “I hope I get to see you in some of those, and not just your gym boyfriends,” Jon teased.

As Shane and I ramped up our flirting, a fire started burning deep within me, a passion my husband had unknowingly awakened with his wife-sharing fantasy that had long remained dormant. Unfortunately, I didn't fully realize how much untapped desire I had buried inside until it was too late.

That being said, I will never, EVER, admit that the story I'm going to tell you actually happened. And as far as my husband knows, it...NEVER...happened.

For another three months, Shane trained me, and during those months, my mind tried and failed miserably to stay on task. With all of the fantasy play that Jon and I were still fooling around with, I started noticing the other men around me more often, along with the abundance of testosterone in the air. It didn't hurt that my trainer was very personable with a witty sense of humor.

While talking with a few of the ladies, I did find out that Shane was a ladies' man. One gal befriended me and asked if he was as "good as they say," figuring that he had already bedded me. I, of course, corrected her as I flashed my wedding ring, telling her that I was a happily married woman.

"Susie, married or not," she said. "That ring is a testosterone beacon. This can be a meat market if that’s what you’re after, and with a banging body like yours? You had better be careful; you might find yourself in his bed screaming his name by the end of the month." I'm sure glad I didn't take that bet.

So far I'd had two warnings telling me to be aware. Since Shane never did anything inappropriate, I brushed the warnings to the side. Eventually, Shane asked if I could change my workouts for a later time, which I did, making me his last workout of the day. This effectively allowed him the opportunity to ask if I wanted to have a stereotypical protein shake across the street after our workouts. Of course, I didn't see it as anything but a growing friendship between workout partners.

When I told Shane that I was thinking of participating in a triathlon, he took the opportunity to offer his help, even on his days off, which, of course, gave us much more time together. I made the mistake of not informing my husband that I was spending more time with Shane than he realized. I guess you could say I was guilty by omission. I wasn't purposely deceiving Jon; I just didn't want him to think there was anything inappropriate going on between his wife and her trainer. I was already having a tough time keeping it semi-professional at the gym; I certainly didn’t need him to start mentioning Shane’s name in bed, making it even more awkward. 

At home, Jon would occasionally mention that my pussy had become extra wet. We would make love, and without any provocation, Shane's face would sometimes flash into my head. My orgasms were coming easier and quicker after some spontaneous visions of Shane hovering over my body as he slammed into me. Of course, I couldn't tell my husband that he was getting help bringing me to orgasm.

Our “dates,” as Shane and I began to call our post-workout routine, provided us with ample opportunity to get to know each other. Since we were working out, it was easy to talk about our bodies without embarrassment. Shane’s opportunity to take the conversation to the next level was when I asked a simple, seemingly innocent question that opened that Pandora's box I spoke of earlier.

"What got you into working your body as hard as you obviously have?" I asked, genuinely wanting to know the answer.

"Sex" was his only reply.

"Sex? What do you mean?" I asked as I opened myself up for whatever he threw at me.

"You're a good girl and wouldn't understand," he said with a smirk on his face.

"Answer me," I insisted, my heart racing with a mix of excitement and defiance. "I want to know what you mean." My libido had been in overdrive lately, and I was searching for an explanation. I was hoping to validate that my heightened sex drive was me working out extra hard and not a result of fantasizing that I wanted to fuck my trainer.

“Okay, since you insist, but don’t get mad if I offend you. I like pleasuring a woman’s body, and working out helps with my stamina so I can please the ladies until they beg me to stop. I want to be the best sex you’ve ever had." 

I raised an eyebrow, intrigued yet slightly taken aback by his boldness in referring to me as a sex partner whom he was pleasing. "Is that so?" I replied as my curiosity piqued. I was wondering just how far this conversation would go and what other secrets he might reveal.

He smirked, clearly enjoying my reaction. "Let me ask you a question," he said, leaning in slightly, as if to share a whispered secret, "what do you find most appealing in a sex partner?"

I just looked at him, not knowing how to respond. "Let me see if I can explain," he started. "Which former boyfriend would you theoretically remember the most? The nice guy who showed you a good time, taking you to dinner at a fancy restaurant and then making love to you slowly and passionately? Or would you remember the man who left you sexually exhausted after taking your body to a different plane of existence, giving you so many orgasms that you had to beg me to stop? Both are good, but which one would stand out in your mind?"

I couldn't tell him that what he said made my nipples harden with excitement and made my juices start to flow as my mind started to seize up. "Uh, well. I've never been with another man; Jon's my first," I admitted.

Shane just looked at me. "You're kidding, right?" There is no way you've only been with one guy. How in the world did you stay a virgin with such a hot and sexy body like yours?"

To this day I don't know why I said what I said next: "All of my other lovers think I have a pretty banging body too." I snickered before realizing what I had said.

"Wait a minute, little lady. Did you say, all your lovers? Didn't you just admit you were a virgin before your husband finally got you? Have you been a naughty girl?" he asked while leaning forward out of interest.

"Oh my god, I didn't mean to say that. Oh god." I then proceeded to spill my guts along with my hidden secrets that no married woman should tell another man. I told him about how Jon fantasizes about sharing me with another guy. "I seriously doubt that he wants to see me with anyone in reality. It's just his thing right now."

Shane's excitement peaked, knowing that the subject of sex had been brought to the forefront of the conversation. "Since we're being so open and honest, I'm super curious. Have you ever pictured me in your mind while your husband was going hog wild on you? No, wait. Scratch that. Have you used me as a fantasy man, and, while we're at it, how good was I? Don't you lie to me either; this is spill your guts time." What kind of conversation did I get myself into? I thought.

I was stuck for an answer. My panties were already soaking wet, and I was unusually turned on, even for me. Now he wanted me to admit that yes, he had been in my bed numerous times, and yes, he was a good fuck.

I tried ignoring his questions and changing the subject, but he wouldn't let me off the hook. So, I told him what any woman would say when backed into the corner.

"None of your business."

"That's a cop-out," he laughed. "I'm never going to criticize you for what you do, Suz. By the way, you're extremely attractive when you're nervous," he told me, taking the chance to share his attraction.

"You think I'm attractive?" I asked, not realizing that he saw me as anything but a workout partner.

"Oh, come on. You have to know how hot you are; everyone thinks so. If you were my girl, I wouldn't share you if that's really what your husband wants. But that's me being selfish. Maybe it's his way of bragging, saying that she's mine, but you can borrow her. But, at the end of the day, she's going home with me."

"Wow, I never thought about it that way. I think it's all just something to keep our sex life active. I don't think I could ever agree to it happening in real life. And what do you mean by 'everyone thinks so'? I never thought anyone noticed me."

Shane then told me about how guys would look at my body: "I know guys who would sell their soul for five minutes with you."

I was feeling very uncomfortable, but it wasn't because of the subject of our conversation; it was because I was getting extremely turned on talking about it. I didn't want it to go any further, so I told him I needed to get home.

"I can't get up right now," he told me with a smile as he looked down into his lap.

"What do you mean?" I asked, not having a clue what he was talking about.

“Seriously? You better not be playing with me," he said as he moved closer to the wall side of the booth we sat in. "You asked for it. Come over here and sit next to me so I can explain; nobody can see us at this angle.”

"Why?" I asked as I did what he said.

"You're not allowed to get offended since it was you who got me into this predicament to begin with."

I tensed up as he grabbed my hand, taking it below the table. "Whoa, mister. What do you think you're doing?"

"Trust me, you can punch me later if you feel the urge."

I then loosened up so he could lead me to his leg, where he placed my hand. I don't know what got into me, but I started to move my hand up his leg as I finally understood the nature of his problem.

"Oh, my," I said as my hand moved to cover the bulge in his shorts.

"Now do you understand?" he quietly asked as he reached down to squeeze my hand around the rigid shaft of his cock.

"Did I do this?" I asked incredulously while at the same time squeezing and caressing his growing erection. "Do you always get this hard?"

"It happens when an incredibly sexy woman tells me that she's fantasized about me while she's being railed by her husband." He then reached under his waistband to discreetly take his shorts down so his cock could be free of its confines. "It's a shame you didn't get the experience of other men. Here's your chance. I'll volunteer to be your second sex partner if you want to make any of these fantasies a reality."

The world was spinning so fast that I didn't have time to think. When I felt the heat radiating from his now bare cock, my hand unconsciously wrapped itself around his shaft while, at the same time, telling him, "We can't be doing this."

"Please don't stop; your hand feels incredible," he said as my hand automatically started its up and down movements.

"You're so hard...and thick," I told him. "Would it fit?" I asked, not realizing what I had just asked.

"Oh, you could take it, Suz. I'm sure of it."

I couldn't let go and totally forgot that I was a married woman stroking another man's phallus. Hypnotized was the only analogy I could think of to describe what I was doing. It was a moment that felt both exhilarating and forbidden, igniting a rush of emotions I hadn't expected to experience. The thrill of secrecy wrapped around us, drawing me deeper into the intoxicating allure of the forbidden act.

I felt Shane's arm around my shoulders as I stroked him. I was so lost in the lust of the situation that I didn't feel his hand as it palmed my right breast and lightly squeezed, testing my resolve. I shuddered as his fingertips grazed over my nipple, making me jump at the sudden feel of the forbidden touch.

"God yes, your hand feels amazing," Shane confessed as his cock slid easily between the palm of my hand. I can’t wait to show you how good it’s going to feel inside of you.” My brain was in such a sexual haze that it wouldn’t allow me to hear the reality of his words. Finally, when he couldn't take my stroking any longer, he was forced to put an end to the semi-public handjob.

"Whoa, girl. I'm glad you're having fun with your new toy, but you need to stop, or I'm going to have a bigger problem than we started with, and you are going to have to be the one to clean it up. Besides, I can think of a better place to put it."

My heart was pounding so hard that I didn't hear him. All I cared about at that moment was the feel of the powerfully engorged cock in my hand along with the feel of an impending orgasm from the way his fingers were manipulating my nipples and surrounding areola. I could feel the heat in my face as my excitement overpowered my clearness of mind.

Continuing with my manipulation, I suddenly felt his cock start to pulse. "Oh, shit," he said as he quickly pulled my hand from around his shaft, forcing him to lose contact with my breast. "That was close." He put himself back into his shorts before the server came over to see how we were doing.

"Let's get out of here," he finally said, but not before the girl smiled and gave me a knowing wink.

“I don't know what got into me,” I said after I came to my senses. "I hope you don't think I'm that kind of girl.”

“What kind of girl is that, Suz? The kind that gives a guy a handjob under the table? Trust me, I wish you could have continued." he teased.

"Hey, if you didn't take it out, I wouldn't have grabbed it, you horndog.”

"Me? What about you, Mrs. Innocent, using me as a fantasy and then teasing me with a very sexy hand job?"

"Let's get out of here; I'm so embarrassed," I finally insisted. I walked as fast as I could, somehow thinking that I could escape the embarrassment that I was feeling. Shane walked me to my car, which was parked in the back corner. "I'm sorry, I need to go," I told him again.

“Wait a minute, sexy lady, I can't let you leave thinking you did something wrong. It was fun, and you enjoyed it as much as I did. We're both adults, and besides, you weren't going to leave me like this, were you?" he stated as he pointed at the prominent bulge in his shorts.

“That isn't my problem, buster," I told him firmly as I stared at his obvious erection.

“Not your problem? You are completely responsible for this, my kinky friend," he said as he pulled his shorts down, showing me his engorged cock, which was at full mast.

“Shane! What the… What are you doing? Put that away!” I said as I started nervously laughing.

“I need to wait until it goes down," he said as he pointed to his erection. “It could cause an accident if I tried to go home like this.”

“You do have a pretty nice cock. You're so thick, I bet your girlfriends thoroughly enjoy it."

“If you like it that much, why not continue what you were doing? It's not like you haven't already stroked it; besides, you have me all ramped up, and I need to get off."

I couldn't stop staring at it, as if it were calling to me. I was becoming enthralled with how menacing his cock looked as it moved back and forth, seemingly hypnotizing me with its movement.

"Trust me, Suz, it won't take long. If you had stroked me just a few more times, I would have come all over your hand.”

I stepped closer, my mind clouded and unclear as I moved. My eyes were unable to look away from his erection as my hand slowly reached for him, my hunger growing the closer I came. He did look delicious.

"Mmm, nice," I admitted. “If you tell anyone,” I said as I looked into his eyes, “they will never find your body.” I then traced down his shaft with the tips of my fingers and up again.

"Fuck, Suz, don't worry, it's our secret."

Reaching for the hem of his shorts, I pulled them down past his hanging balls. "Oh my," I whispered as I weighed them as if they were the crown jewels. "They're so big; they must be full."

Shane wisely chose to remain silent, allowing me to succumb further to my growing passion. "So big...so warm." I said mostly to myself as I held his balls in my hand. "I like how smooth they are."

"They need to be emptied," he told me. "Would you happen to have any ideas on how to solve my problem?"

"I really caused this, huh?" I asked.

"Your hands are so soft. You could continue your hand job until I cum, but that would leave a mess. Have you ever brought your husband off with your mouth?"

"Of course I've sucked him; we're married. But I've never let him cum in my mouth. I thought it would be gross. Wait, you don't want, I mean. I can't..."

"Sure, you can, unless you want to go over to my place to try it on for size.” He winked. “I do prefer the comfort of my bed when I'm fucking a woman as sexy as you," he said with a sly grin. "If you're not ready for that, your mouth will do just fine.

Oh my god, I thought, he wants to fuck me. The car door was open, so I sat on the seat as I considered what he had just asked. I continued stroking him as my mind whispered for me to go for it. I looked into his eyes. "I'm serious, Shane, if anyone finds out..."

"Trust me," he said in a pleading tone.

As I stroked him, only inches from my lips, there was just enough light so I could see the glimmer of liquid coming out of the tip of his cock. My desire took over as I leaned forward to lick his pre-cum, right before taking the head of his cock into my mouth.

"Oh…Fuuuck," Shane moaned as his cock went deeper into my mouth and over my tongue. Lust had taken control as I committed my first act of adultery. "You have no idea how good your mouth feels, Suz."

His cock felt so different in my mouth compared to my husband's—not better, but the contrast was astounding. His cock was large enough that I could fit two hands side by side, and I learned that I could stroke and twist as I went, giving him even more pleasure. 

"Lick my balls."

I pulled off of his cock and licked my way down to his hairless balls. “I don’t know how," I admitted.

“You’ll do fine; just be careful to not use your teeth.”

I nervously smiled before looking down at his balls before licking them some more. Eventually I sucked one and then the other into my mouth, bathing them both with my tongue as I sucked them. I wasn’t sure if my enthusiasm was up for such a delicate act, but he seemed to enjoy it just fine.

"Fuck, yes. You feel so good," he told me as his hand went down to touch my breasts, lifting my sports bra so he could feel the flesh in his hands. "Your tits are a perfect handful too." Keep doing that; don't stop." He then gripped the car door. "I'm going to cum, oh god, just like...Ahhh...." Shane moaned and tried to be as calm as possible, but the fact that a married woman had her lips sealed around his cock proved to be a losing battle.

I felt the first rope of cum hit the back of my throat, followed by another and another and yet another. I moaned and gurgled around his cum, trying to relax my gag reflex. I didn't believe I was even capable of doing this. It didn't take long before his cum was oozing out around my lips. I continued to stroke his cock until his balls were finally empty.

"That...Oh my god, that was amazing," Shane confessed.

I slowly took my mouth off of his softening cock so I wouldn't spill his sperm and looked up with my cheeks expanded. I didn't know what to do next, as I hadn't learned how to swallow and certainly wasn't going to start now.

"It's okay, go ahead, just turn your head and spit," Shane giggled. "Just this one time, though. Next time I won't be so understanding." I leaned out of the car and spat out a massive load of his sperm. How can so much semen come from just one cock? I wondered. 

You know how when you get turned on, your brain goes to sleep, and then you wake up and wonder, what did I just do? Yeah, that was me. I came to my senses and realized that I had just cheated on my husband. I looked at Shane, and he saw what I was feeling.

"Hey, don't worry, we just got carried away and had some fun, is all. My god, your mouth felt amazing. I needed that in the worst way, thank you," he said, trying to diffuse the situation.

"I don't believe that just happened," I told him in a slight panic as I straightened my sports bra properly over my breasts. 

"Hey, it happened, and the sky didn't fall or anything."

"I shouldn't have done this. What was I thinking?" I started to panic, but Shane talked me down.

"Don't worry, it happened, and I, for one, am happy it did. I'm sorry you feel bad, but don't beat yourself up too much. You're still married, and I'm still just your trainer; nothing has changed," he told me. “Well, except for that spot on your bra.” I looked down in panic, not seeing anything, and just laughed at his poor attempt at humor. 

"Friends?" he asked with a concerned look in his eyes.

I stood up. "Of course, but we can't do that again, understood?"

“It’s still early, Suz. How about we go to my place and get some more cardio in?" he said as he leaned in for a kiss.

I softly punched him and laughed, "Under no circumstances will I let you take me to your bed, mister, but yes, tomorrow, same time."

"Don't worry, Suz, we'll get our workout in just like we always do and take it from there,” Shane said as his lips touched mine, making me moan. His tongue slid effortlessly between my parted lips, and we kissed for under a minute before I miraculously came to my senses.

Putting my hand on his chest and forcing myself to pull away, I told him, “Shane, I'm serious. This can't happen again.”

As I drove home with the taste of Shane’s cum fresh in my mouth, I felt sick to my stomach and disgusted for allowing myself to do what I did. Most of all, I was concerned because I had never felt so turned on in my life and wondered if I would be strong enough to resist further temptation.