Author's note: Hi! This is my first submission. I guess I'm writing the chain story I've always wanted to read. Please note: this is fantasy! If you don't like cheating/betrayal PLEASE don't read on because that's what's coming. This is the introduction to the story. Next chapter to be posted soon.
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Glancing across the breakfast bar, Mark smiled. He had been married 10 years this summer, and theirs was a marriage to be proud of. His friends would joke, with an undertone of real envy, about just how he'd got so lucky. He'd met Jo at the pub, a friend of a friend out to celebrate some mutual acquaintance's 25th birthday. The connection was instant, really. Her green eyes sparkled when she got excited telling funny stories, about work, her life, her mid-20s adventures. Her auburn hair fell in gentle waves to her mid-back, her breasts were full and firm. He knew right away he needed to get to know her a lot better. As the night had continued, the warmth in her smile grew, and the butterflies in his stomach stretched their wings. 2 years later, he watched her float down the aisle, his own angel soaring on the wings of the white satin train that lay out behind her. They chose not to have children, and spent their time and money on travel, adventures, experiences. Theirs was a full life.
The sex life wasn't too shabby either. She was passionate, loving, and knew how to work his body for his pleasure. The intense sensation of watching her as he lay between her legs bringing her to the ultimate place of pleasure never ceased to hit him hard in the heart.
And yet, as time passed, Mark's desire to cheat grew. It started innocuously enough, as most things do. He'd watch porn from time to time, even before they were married, if Jo was away for work or just tired when his dick was hard. He would watch a fair array of genres, but slowly, without even consciously noticing this is what he was doing, he was leaning towards videos where the husband was being unfaithful. If he heard the man moan "you're so much better than my wife", he'd almost always cum uncontrollably, his thick white seed bursting out of his throbbing cock in hand. He'd watch videos where it was the woman cheating sometimes, and particularly enjoyed seeing a woman in her wedding dress getting fucked hard by a man other than her husband. He'd still cum, but found his imagination telling him it was another married man ruining the bride at the point of no return.
Within a year of being married, the idea of it being hot to see someone cheating had started to effect how he felt about his own life. Aren't there all these wives out there who let their husband fuck other women, and even love it? Want to taste the other woman on their husband's dick, hear all the details about it in the marital bed?
So one night in bed with Jo, he tried to dip a toe in the water, asking leading questions in the heat of a hard fuck.
"Yeah baby, fuck you love that cock fucking you?" he panted at her.
"Mmmm fuck yes baby" Jo moaned in response, looking up at her husband bearing down over her as he plunged into her depths over and over again as he mauled at her soft plump tits, teasing her dark nipples just as he knew she loved.
"What if another woman wants this cock baby?" he braved. "What if some sexy slut at work wants to be stretched by my married cock?" he continued, voice wavering with lust, recognising that as he said it his heart raced even faster and he quickly moved to the finish line.
"Ohhhh Mark, fuck" Jo gasped, and without an immediate 'no' being given as a response, Mark grunted then roared as his balls retracted and started pumping rope after rope of hot cum into his wife, stronger than ever at the thought of it filling someone else. And then Jo moaned "yessss you know it's all for me baby, MY cock for YOUR pussy" and she started convulsing, orgasming hard on her husband's pumping hardness. Mark was too far gone, she was over the edge, both of them lost in their ecstasy. But as the cascade started to ease, the realisation hit him. She had orgasmed because it was her husband's cock filling her and only her; he had orgasmed harder than ever before because he thought she was turned on at the idea of him betraying her.
"Mark, oh my God, fuck, look at the mess," Jo laughed, looking down at her neatly trimmed pussy covered in cum, pushed out by the force of his fucking and the sheer volume of cum not being able to fit inside her. "You really came hard." Jo leaned up slightly to press her lips to Mark's, and he kissed her back slowly and lovingly. Slowly he deflated inside her and withdrew. They whispered to one another their love, and they held each other as they fell asleep almost right away, loving each other fully.
Later, much later, Mark reflected back to this moment and thought, he should have known then, his guilt wasn't strong enough. He should have been mortified that she had cum with love, and he had cum to the thought of some random slut milking him. Yet all he did was cum and fall asleep. His only regret in the morning, was that he'd dipped his toe and his wife had taken it completely the other way.
Mark resigned himself to continuing with his occasional porn habit, now almost exclusively focusing on videos where the husband was cheating, or fucking his wife and telling her about his cheating. Harmless, is what he told himself it was. But the habit was still increasing, and he ignored the small voice in his head that would occasionally warn him, "you're in a dangerous place, Mark."
