Hi, I have had this fantasy for some time, but I am really bad at writing. Maybe someone thinks this sounds interesting and want to write the story, if not I may try myself if there is interest in it, just be wary of my bad writing. Its also a pretty big request with lots of info, but feel free to alter, add or remove to you liking 
Here it comes:
Starts with Husband coming home to his wife in bed with another guy, the wife don't care and just continues having sex while humiliating the husband telling him he can't compare to a real man. Wife is cumming multiple times as the newly discovered cuckold froze and just stood there in the doorway looking with a hard-on dripping precum. The guy speeds up and grunts while he cums inside the wife, the wife gets up holding the sperm inside her with one hand while dragging her husband into the middle of the room and shoved him to the floor, the husband was to shocked to do anything and lay down without any resistance as his wife sat down her drenched pussy onto his face and told him to clean her up good. He was silent but seemed like it was hardcoded reluctantness to go through with it, his wife grabbed his nipples behind her back and twisted it until he screamed in pain. With his open mouth mid scream she pushed a big glob of cum into his mouth while laughing. She did not let go of his nipples right away, not until after he went through with her demands for him to clean her completely. She waved to her lover in a come hither motion and put his big dick into her mouth, licking it clean while also getting him hard again. She came hard while getting licked and sucking her lovers cock, and only stopped long enough to tell her husband to get the hell out of the house, the whole thing was a test to see if he was man enough to stop and fight for his wife. The wife told him that he had until the weekend to pack his stuff and get completely out of the house, she ignored anything else he had to say while still sucking the lovers cock. She eventually said to get the fuck out again as she needed her lovers cock inside her again, this time he stormed out with tears in his eyes.
Chapter two:
Contains no sex, just a setup and some lightly described masturbation.
He now had gotten himself a small place to live, he could not afford much on his own as his now to be ex-wife demanded their house. He was working two part time jobs, just barely enough to pay for the rent and food. After one tough day at work he leaned back in his chair by his computer, thinking of how much he missed his ex-wife, and the good times they had when he suddenly felt a feeling. He was getting hard while thinking of his ex-wife, it soon went to him thinking of her getting fucked by a multitude of men in the house he used to live in. He started to touch himself while looking up porn on his computer, as he was looking for something to watch he found one movie that peaked his interest, a woman with the same figure and looks that of his ex-wife getting fucked raw by a black man with a huge dick, he came almost instantly before post nut clarity came washing over him. Was he really a cuckold in heart? He used most of the rest of his day to read about beeing a cuckold and stories from other couples, until a popup window showed up on his computer. It was an advertisement from a big tech company based in Japan, featuring a living robot sex doll where you could alter her looks to fit your likes and fantasies, he was looking at it for a while before he thought it was just a scam and went to bed. Next day he went to work as normal but he was suddenly thinking about the sex robot he read about the day before, the rest of the workday he became very horny thinking about it. As soon as he came home he went into the website to order the sex doll of his dreams. He was met with a questionare with what he liked and what he wanted the doll to look like along with some papers to sign for the company to go through his search history and his phones contact list among other things. He did not think this over in his horny state, and he did not have anything to hide he thought. There was so much to add on the doll that he did not know where to start, so he bought the complete package with everything added. This took a while and so he went to bed after ordering this doll, as it was quite expensive he signed a deal to pay monthly, with no returns allowed.
Chapter 3:
He was getting a phone call, informing him his package was to be delivered one week from now, and that he was getting some information sent by mail that he was reccomended to follow before he got his doll, he got a mail with a login to his own userinterface where he could update and reset his doll alongside some manual that told him to wait with any sexual act until the doll arrived as it would need to be setup correctly and he would need to be able to have sex multiple times to get the correct tuning for the doll, and would need some spare time as well. As he was already horny thinking about it the week was horrible to get through, but he managed.
On the day of delivery he had already gotten three weeks of approved holliday from his two jobs, and was waiting eagerly by the door when the truck came, as the package was really heavy they helped him inside with the box.
After the delivery truck left, he wasted no time unpacking his doll and to his surprise there was no montage of parts, everything was ready with one doll part and one charging dock almost similar to the charging dock of the robot vacuum he used to have, he struggled but managed eventually to get the doll on top of the charger and connected the ethernet cable to the docking station. The dolls eyes started glowing red as it was charging, then turned green when fully charged, he went over to the docking pad and say a touch display had come to life with the choice to update and syncronize the doll to your likings, he pressed okay as the manual instructed. Her eyes turned blue and made a sound when finished.
He grinned and started the doll up, he was greeted by the doll askimg him if he wanted to release some tension. He answered yes and walked towards the bedroom, the doll followed and laid herself down on the bed. He was quick to undress and threw both of their clothes on the floor before he threw himself over her and shoved his normal sized dick inside her, he started moving back and forth but did not feel much until she said she needed to adjust the size of her pussy to the correct size for him, after a few thrusts it felt amazing and he came in only 20 seconds. He suddenly heard a sound from inside the doll, when he asked about it the doll replied that it was her cleanup precedure that was done as soon as she explained to him what it was, she started to jerk him off to get him hard again and jumped on top of him and placed him inside her, he asked what she was doing on top, she just responded that she would need as much data and different poses to correctly program herself to what he likes, he gave this no thought and he was soon getting close to cumming again as she upped the tempo a lot, again he lasted no more than a minute. After a new cleanup procedure she told him she would need to syncronize again at the docking station and to be ready for another round in a few minutes. She was returning to the bedroom in just about 3 minutes, but he was not ready yet for another round. She asked if she could help getting him ready and if he approved for her to do it her way, with no questions asked he said yes, after all it was important to follow the manual to correctly setup his new doll. She unhooked one of her arms in a way that made it only fixed to her body with a moveable wire and retracted parts of it until it had been shaped like a soft but stiff phallus like tentacle thing wich oozed a white substance she informed was lubricant, she quickly found her way to his anus and begun carefully inserting it into him before he could react, he became hard again in a heartbeat, she again jumped on top of him and fucked him while her arm was still inside his anus, he came the hardest he had in his entire life. The doll was quick to clean up and retracted her arm to the normal position where it looked like an arm again. He was told after this that he could look at porn and play with himself but not cum, this was to strengthen the bond between them as quickly as possible, she also said she needed to recharge her batteries and syncronize again the data she collected. She later woke up and went to him as he was looking at porn on his computer, again on cuckold porn with a black male on a white woman. He was quick to exit the page as soon as he noticed her behind him, she asked if he was horny as she sat down on her knees grabbing his already hard and leaking cock, he said yes as she put his cock in her mouth, she started sucking him in an intense way almost dancing with her tongue on his dick, he senced that he was getting close to the point of no return as he felt something entering his ass again when he exploded in her mouth, there was quite a lot of cum as he had been edging for some time as he was not allowed to cum. As soon as he came to his senses he asked why she went up his ass, she answered it was a present for him as he seemed to like it. She explained that after all if he repeated that he disliked it she would program herself not to repeat it, he did not answer, but instead asked if she would need to clean her mouth after getting drenced in so much cum, but she had already begun a cleanup process of her mouth and face and explained to him that it was no need as she could clean herself thorougly herself between every time and empty the contents inside her when she needs. He told her that he needed to go to bed and she helped him get his clothes back on, she was fiddeling a bit to get the clothes on but he waited patiently before he stood up and went towards the bed. As soon as he got under the sheets she went off to the charging port, when she connected to the charger he started to feel some small vibrations inside his ass, they were not strong but enough for him to notice, he went to the living room to ask the doll what was happening to his ass, but she was unresponsive on the charging port, he felt a little frustrated by the whole thing but went to bed. He had trouble falling asleep and the vibrations had made him horny again, he could feel something tugging down on his cock, he removed his clothes and to his surprise there was a chastity device on his cock, when did she he thought before remembering the fiddeling with his clothes before bedtime. He suddenly felt the vibrations getting stronger and he neared the edge when the vibrations suddenly stopped for a while before it started up again until he neared the edge again. He was getting really frustrated and started to walk across the livingroom waiting for her to wake up. Suddenly the vibrations stopped for a longer time and he was able to fall asleep. After some time sleeping the vibrations came back but on a low setting, low enough to keep him horny and hard but not enough to wake him as he was really tired, stopping only for a brief moment when he neared the edge. When he woke up a little later than usual the next morning the doll was already laying in bed close to him, waiting for him to wake up.
Chapter 4 : more coming
Here it comes:
Starts with Husband coming home to his wife in bed with another guy, the wife don't care and just continues having sex while humiliating the husband telling him he can't compare to a real man. Wife is cumming multiple times as the newly discovered cuckold froze and just stood there in the doorway looking with a hard-on dripping precum. The guy speeds up and grunts while he cums inside the wife, the wife gets up holding the sperm inside her with one hand while dragging her husband into the middle of the room and shoved him to the floor, the husband was to shocked to do anything and lay down without any resistance as his wife sat down her drenched pussy onto his face and told him to clean her up good. He was silent but seemed like it was hardcoded reluctantness to go through with it, his wife grabbed his nipples behind her back and twisted it until he screamed in pain. With his open mouth mid scream she pushed a big glob of cum into his mouth while laughing. She did not let go of his nipples right away, not until after he went through with her demands for him to clean her completely. She waved to her lover in a come hither motion and put his big dick into her mouth, licking it clean while also getting him hard again. She came hard while getting licked and sucking her lovers cock, and only stopped long enough to tell her husband to get the hell out of the house, the whole thing was a test to see if he was man enough to stop and fight for his wife. The wife told him that he had until the weekend to pack his stuff and get completely out of the house, she ignored anything else he had to say while still sucking the lovers cock. She eventually said to get the fuck out again as she needed her lovers cock inside her again, this time he stormed out with tears in his eyes.
Chapter two:
Contains no sex, just a setup and some lightly described masturbation.
He now had gotten himself a small place to live, he could not afford much on his own as his now to be ex-wife demanded their house. He was working two part time jobs, just barely enough to pay for the rent and food. After one tough day at work he leaned back in his chair by his computer, thinking of how much he missed his ex-wife, and the good times they had when he suddenly felt a feeling. He was getting hard while thinking of his ex-wife, it soon went to him thinking of her getting fucked by a multitude of men in the house he used to live in. He started to touch himself while looking up porn on his computer, as he was looking for something to watch he found one movie that peaked his interest, a woman with the same figure and looks that of his ex-wife getting fucked raw by a black man with a huge dick, he came almost instantly before post nut clarity came washing over him. Was he really a cuckold in heart? He used most of the rest of his day to read about beeing a cuckold and stories from other couples, until a popup window showed up on his computer. It was an advertisement from a big tech company based in Japan, featuring a living robot sex doll where you could alter her looks to fit your likes and fantasies, he was looking at it for a while before he thought it was just a scam and went to bed. Next day he went to work as normal but he was suddenly thinking about the sex robot he read about the day before, the rest of the workday he became very horny thinking about it. As soon as he came home he went into the website to order the sex doll of his dreams. He was met with a questionare with what he liked and what he wanted the doll to look like along with some papers to sign for the company to go through his search history and his phones contact list among other things. He did not think this over in his horny state, and he did not have anything to hide he thought. There was so much to add on the doll that he did not know where to start, so he bought the complete package with everything added. This took a while and so he went to bed after ordering this doll, as it was quite expensive he signed a deal to pay monthly, with no returns allowed.
Chapter 3:
He was getting a phone call, informing him his package was to be delivered one week from now, and that he was getting some information sent by mail that he was reccomended to follow before he got his doll, he got a mail with a login to his own userinterface where he could update and reset his doll alongside some manual that told him to wait with any sexual act until the doll arrived as it would need to be setup correctly and he would need to be able to have sex multiple times to get the correct tuning for the doll, and would need some spare time as well. As he was already horny thinking about it the week was horrible to get through, but he managed.
On the day of delivery he had already gotten three weeks of approved holliday from his two jobs, and was waiting eagerly by the door when the truck came, as the package was really heavy they helped him inside with the box.
After the delivery truck left, he wasted no time unpacking his doll and to his surprise there was no montage of parts, everything was ready with one doll part and one charging dock almost similar to the charging dock of the robot vacuum he used to have, he struggled but managed eventually to get the doll on top of the charger and connected the ethernet cable to the docking station. The dolls eyes started glowing red as it was charging, then turned green when fully charged, he went over to the docking pad and say a touch display had come to life with the choice to update and syncronize the doll to your likings, he pressed okay as the manual instructed. Her eyes turned blue and made a sound when finished.
He grinned and started the doll up, he was greeted by the doll askimg him if he wanted to release some tension. He answered yes and walked towards the bedroom, the doll followed and laid herself down on the bed. He was quick to undress and threw both of their clothes on the floor before he threw himself over her and shoved his normal sized dick inside her, he started moving back and forth but did not feel much until she said she needed to adjust the size of her pussy to the correct size for him, after a few thrusts it felt amazing and he came in only 20 seconds. He suddenly heard a sound from inside the doll, when he asked about it the doll replied that it was her cleanup precedure that was done as soon as she explained to him what it was, she started to jerk him off to get him hard again and jumped on top of him and placed him inside her, he asked what she was doing on top, she just responded that she would need as much data and different poses to correctly program herself to what he likes, he gave this no thought and he was soon getting close to cumming again as she upped the tempo a lot, again he lasted no more than a minute. After a new cleanup procedure she told him she would need to syncronize again at the docking station and to be ready for another round in a few minutes. She was returning to the bedroom in just about 3 minutes, but he was not ready yet for another round. She asked if she could help getting him ready and if he approved for her to do it her way, with no questions asked he said yes, after all it was important to follow the manual to correctly setup his new doll. She unhooked one of her arms in a way that made it only fixed to her body with a moveable wire and retracted parts of it until it had been shaped like a soft but stiff phallus like tentacle thing wich oozed a white substance she informed was lubricant, she quickly found her way to his anus and begun carefully inserting it into him before he could react, he became hard again in a heartbeat, she again jumped on top of him and fucked him while her arm was still inside his anus, he came the hardest he had in his entire life. The doll was quick to clean up and retracted her arm to the normal position where it looked like an arm again. He was told after this that he could look at porn and play with himself but not cum, this was to strengthen the bond between them as quickly as possible, she also said she needed to recharge her batteries and syncronize again the data she collected. She later woke up and went to him as he was looking at porn on his computer, again on cuckold porn with a black male on a white woman. He was quick to exit the page as soon as he noticed her behind him, she asked if he was horny as she sat down on her knees grabbing his already hard and leaking cock, he said yes as she put his cock in her mouth, she started sucking him in an intense way almost dancing with her tongue on his dick, he senced that he was getting close to the point of no return as he felt something entering his ass again when he exploded in her mouth, there was quite a lot of cum as he had been edging for some time as he was not allowed to cum. As soon as he came to his senses he asked why she went up his ass, she answered it was a present for him as he seemed to like it. She explained that after all if he repeated that he disliked it she would program herself not to repeat it, he did not answer, but instead asked if she would need to clean her mouth after getting drenced in so much cum, but she had already begun a cleanup process of her mouth and face and explained to him that it was no need as she could clean herself thorougly herself between every time and empty the contents inside her when she needs. He told her that he needed to go to bed and she helped him get his clothes back on, she was fiddeling a bit to get the clothes on but he waited patiently before he stood up and went towards the bed. As soon as he got under the sheets she went off to the charging port, when she connected to the charger he started to feel some small vibrations inside his ass, they were not strong but enough for him to notice, he went to the living room to ask the doll what was happening to his ass, but she was unresponsive on the charging port, he felt a little frustrated by the whole thing but went to bed. He had trouble falling asleep and the vibrations had made him horny again, he could feel something tugging down on his cock, he removed his clothes and to his surprise there was a chastity device on his cock, when did she he thought before remembering the fiddeling with his clothes before bedtime. He suddenly felt the vibrations getting stronger and he neared the edge when the vibrations suddenly stopped for a while before it started up again until he neared the edge again. He was getting really frustrated and started to walk across the livingroom waiting for her to wake up. Suddenly the vibrations stopped for a longer time and he was able to fall asleep. After some time sleeping the vibrations came back but on a low setting, low enough to keep him horny and hard but not enough to wake him as he was really tired, stopping only for a brief moment when he neared the edge. When he woke up a little later than usual the next morning the doll was already laying in bed close to him, waiting for him to wake up.
Chapter 4 : more coming