The beginning of the story is here:

https://www.eroticspace.info/story/2012-02-23/izmena-lyubyaschey-zheny.html

All the weekend, Masha scrolled through the events on Friday, she was still tormented by a feeling of guilt, but it was greatly diluted by the excitement that she felt, recalling Andrei’s thick cock stretching her pussy and his powerful jolts. She was somewhat detached these two days, so her husband even got worried and kept asking her if she was doing well at work. Masha responded to this that everything is fine at work, which in general was true.

On Monday, she was still waiting, when Andrew would show any special attention to her, but he seemed to have deliberately ignored her, although she had dressed up in a rather frank outfit and with all her might shot eyes. This went on for two more days. Masha got completely worn out, she thought that he would only think that about her all this time, but it turns out that he fucked her and forgot! As it is possible, all the guys in the office stare at her! Yes, and he himself recently showed not weak interest in her. Maybe sleep with married women against his principles? And on Friday, he just succumbed to alcohol and now blames himself and tries to avoid it, so as not to break? She decided to find out without even knowing how far she was from the truth.

On Thursday evening, when almost everyone had gone their separate ways, she came to Andrei’s office under the pretext that she needed to discuss her proposal for collecting statistics in the project. They sat side by side, examining and scribbling in printouts, Masha peeked at him, trying to read something on his face, then grew bolder and put her hand to his thigh. Andrew started, but continued to look at the documents, then she covered her palm with his hand, it turned out that there was already formed a decent hill. Here Andrei turned to her with his whole body, looked straight into his eyes and began to kiss her. His hands fumbled over her legs, breasts, he pulled off her blouse and bra, let her chest out and started playing with her sensitive nipples, which made Masha start to sigh and flow. Then he unbuttoned his pants, released his penis, and said dully, “Suck him.”

Masha exulted, because she managed to rekindle his passion! So he wanted her all this time, but he struggled with himself! She knelt before him and began to suck hard cock with fervor. Masha wanted so much that he liked that she tried harder than ever, even she never sucked her husband like that! She licked his big head and thick trunk, put her mouth as deep as possible, trying to miss the penis in the neck and bury her nose in his groin. And she did it! Masha was very proud of herself, she did it a few more times, holding back her gagging urges, and while trying to caress the trunk with her tongue, loud moans of Andrew encouraged her. Then she took the penis out of her mouth and began to lick his balls, while looking victoriously at his face and seeking approval in him.

Andrew dragged, sitting in his office chair and looking like this silly married slut diligently sucks his swollen to the limit member. He didn’t even need to do anything, just don’t pay attention to her for a couple of days, and now she ran to him, and considers it a great achievement, to stand in front of him on her knees on a dirty floor, sweeping him with her beautiful skirt, with boobs exposed to the outside, and to please his dick with his innocent mouth. At that moment, Masha was just trying to take both testicles in her small mouth, simultaneously caressing their tongue, prying her member with her right hand, and looking into his eyes, her left hand had long been in panties, caressing a protruding clitoris. I would have seen her husband, this smug, infantile cretin. And what can he see, Andrei thought, taking his iPhone and making a photo of Masha with his eggs in her mouth and dick across her cute face. Machines hands and mouth were so busy that she had no opportunity to rebel this photo. Well, she thought, he was a decent guy, he probably did, then to jerk her again.She was already ready to implant her thirsty pussy on this beautiful fat member, and nothing else bothered her.

But Andrew decided otherwise, he was not going to give this bitch what she wanted, she had not yet swallowed the bait entirely. He grinned at this coincidence, got up from the chair, made Masha stick out the tongue, knocked on him with a member, then took Masha by the back of the head with both hands and began to bang her face into the mouth. Masha tried very hard to cope with his pressure and not to escape, she just stood with her tongue sticking out and her mouth open where the fat dick flew over the very eggs. While Andrew was using her mouth and throat, she came up with the phrase “fucking in your mouth”, but she drove her away.

Finally, Andrew, he felt the sperm boil in his eggs, he once again planted deeper into this damn mouth and began to lower. Masha was not easy to cope with all the sperm that Andrew poured into her, but she managed to swallow everything. Except for a couple of drops, which he shook off on her attractive face. Masha still came to the senses after a hard fuck in the mouth, when her head tucked the cock in her pants and sat back at the table.

“Come back tomorrow,” he said. “I still have to work today.”

Masha could not believe her ears, she hoped that he would fuck her properly now, but her current overexcited hole was ignored. Andrei has already buried his back in the laptop. Masha had no choice but to fix her blouse and jump out the door.

At home, she threw herself on the threshold of his Cyril, who kissed her lips, not knowing that just an hour ago they were pleasing a strong member of a man whom he could not tolerate, and although it smelled unfamiliar from Masha, he did not focus on this. When her husband started fucking her, she thought vengefully about Andrei - well, if you didn’t want to insert my girlfriend, then there would be someone to do it. But sex with her husband did not bring her the same vivid impressions, she wanted pressure, hard sex. But when she began to push her beloved hubby, he first wound up, forcing her to cry out, but finished in a minute, leaving her even more inflamed. Masha helped herself to finish with her fingers, after her husband fell asleep, now presenting both of her times with Andrew.

From her head did not go the phrase thrown by him at the end: “Come tomorrow.”