<p><a href="https://www.patreon.com/beccabellamy/posts?filters%5Btag%5D=sub%20to%20girlfriends%20mom">Click here</a> to read the previous parts of the story.</p><p><img data-media-id="144161802" src="/2f/00/2f0078b07eafd6c8c0337b6fdb01cc83e66df680ba88c974b212df0560635b13.jpg"></p><p>Zack was surprised to see Camilla’s car parked next to Bella’s in the driveway as he pulled in after a long day at work. He’d heard nothing about his future mother-in-law stopping by – perhaps for dinner – but Camilla’s presence usually brought with it some level of excitement, so Zack had a smile on his face as he stepped into the house and headed towards the living room.</p><p>“Zachary,” Camilla said as she set her drink on the coffee table, stood, and approached him.</p><p>“Camilla, it’s good to see you,” he replied while doing everything in his power not to stare at her breasts in the low cut sweater she wore.</p><p>Camilla pulled him into a tight hug and Zack felt her breasts press against his body. She kissed him on the cheek and her lips lingered far longer than would have been appropriate if their relationship was even remotely typical. It wasn’t, of course. Zack had gone down on Camilla countless times. She’d jerked him off. He’d sucked cock for her. A kiss on the cheek was tame compared to everything else they’d done together.</p><p>“Zachary, I was distressed to hear that Bella tell me that you’re not quite living up to the standards of submission I tried to instill in you,” Camilla said as she stepped back.</p><p>Zack glanced at Bella and saw a slightly annoyed look on his girlfriend’s face. Her concerns weren’t a surprise, though. In fact, they’d had a handful of discussions regarding what Bella saw as a slippage in Zack’s willingness to submit to her needs.</p><p>“Is that why you’re here?” Zack asked.</p><p>Camilla turned to Bella and said, “I can see what you’re talking about. His voice and posture are defensive. He seems a little annoyed at the idea of it being his duty to submit to you and to put your needs above his own.” She turned back to Zack and asked, “What happened, Zachary? It’s only been two months since you moved out. How did you fall so far?”</p><p>Zack felt the defensiveness Camilla had mentioned rise up in him. He’d noticed it for the past month. It wasn’t overwhelming – he was still being a good cuckold for Bella – but it unquestionably got in the way of his happiness and it seemed that it was affecting Bella’s happiness too. “I…I don’t know,” he answered. “I really don’t know.”</p><p>Camilla took Zack’s hand and led him towards the couch. “I think I know,” she said.</p><p>“You do?” he asked. Camilla sat and pointed at the ground at her feet. Zack fell to his knees without hesitation and looked up at the woman that had taught him so much about submission.</p><p>Camilla smiled at Zack and looked at her daughter. “I’m afraid the responsibility for Zachary’s regression lies with you, Bella.”</p><p>Bella’s eyes went wide with surprise and Zack saw her fingers tighten around the glass in her hand. “How could it be my fault?” she asked.</p><p>“Bella, darling, I’m not being critical, I’m simply stating what I see as a fact,” Camilla explained. “A submissive cuckold cannot be his best self without the guidance of a dominant woman. For months I was that woman in Zachary’s life. I guided him so that he could be an ideal cuckold husband for you. When you moved out, that task was passed on to you and it seems as though you haven’t taken that task seriously.”</p><p>Bella looked at Zack and her shoulders sank a little as she seemed to soak in the idea that she had, in fact, failed him. “Have I not been dominant enough?” she asked.</p><p>“I don’t know,” Zack replied. “I can’t say that I’ve been keeping close track of how dominant you’ve been, to be honest. I guess I do feel like I do a lot around here and I don’t always feel like my contributions are appreciated.”</p><p>“What do you do around here, Zachary?” Camilla asked.</p><p>“I do all the yard work. I do a fair amount of the work around the house. I do quite a bit of cooking and cleaning. I always give up my place in the bed when Luke spends the night. I make the bed after they’re done. I clean up, of course,” Zack said.</p><p>Camilla held up her hand and smiled. “Thank you, Zachary. That’s quite detailed.” She turned to Bella and asked, “And how do you reward Zachary for his contributions to your life?”</p><p>“I…well, I have sex with him,” Bella said. “I’m affectionate. Even when I’m not interested in sex I make sure that he’s satisfied. Handjobs, that sort of thing.”</p><p>Camilla smiled at her daughter, took Bella’s hand, and asked, “Do you dominate him?”</p><p>“I think so,” Bella replied.</p><p>“That means you don’t, Bella,” Camilla said before turning to Zack. “I apologize, Zachary. I wasn’t thorough enough when I explained to Bella what you would need from her, and it seems that she’s made the same mistake so many would-be dominant women make.”</p><p>“Mistake?” Bella asked with just a hint of incredulity in her voice.</p><p>Camilla smiled at Zack and beckoned for him to move between her legs. He did so without hesitation and she reached out and caressed his face before running her fingers through his hair. “Bella, darling, Zachary is a submissive, but that doesn’t mean he’s your servant. The relationship between a domme and a submissive is symbiotic, meaning that both parties get what they need from it. You need a submissive cuckold husband to be happy. Zachary needs a dominant wife to be happy. Unfortunately, you’re failing him at the moment. You’re taking what you need from him, but you’re not giving him the domination he craves.”</p><p>Zack felt a deep sense of relaxation move through him as Camilla continued to offer her gentle touch in caressing him. He glanced at Bella and saw what he was certain was a touch of jealousy on her face.</p><p>“What are you saying?” Bella asked. “Am I not good enough for Zack?”</p><p>“Bella, darling, don’t be silly,” Camilla said. “I’m saying that you need to be a better domme. Zachary finds submission rewarding, but the submission is absent that reward unless he’s being dominated by the woman he loves. You need to dominate him, Bella, and that means more than fucking Luke whenever you want to and letting Zachary clean the house, mow the lawn, and go down on you after your lover has fucked you. That means tending to Zachary’s submissive needs each and every day, just as he tends to your needs as a woman and his domme.”</p><p>Camilla pressed her index finger against Zack’s lower lip and he opened his mouth as if she’d commanded him to do so. She smiled and placed two fingers onto his tongue. Zack closed his lips around them and sucked as a deep sense of pleasure filled him. Camilla gently moved her fingers in and out of his mouth, penetrating him slowly and deepening that sense of pleasure.</p><p>“Do you see it, Bella?” Camilla asked. “Do you see how much he enjoys something as simple as my fingers fucking his mouth?”</p><p>“I do,” Bella said.</p><p>Camilla pushed her fingers deep enough to make Zack gag for a moment before she resumed fucking his face. “Do you appreciate the beauty of it? Do you appreciate how wonderful it is to be able to pleasure your man simply by offering the smallest touch of domination?”</p><p>Bella nodded. “I do. I’m so sorry, Zack. I should have done a better job of tending to your needs. I didn’t realize how much my mother was doing.”</p><p>“I’m sorry too, Zachary,” Camilla said. “I overlooked my daughter’s inexperience as a domme. I assumed it would come naturally to her, but that was foolish of me.”</p><p>“I think it might come naturally to me,” Bella replied with just a bit of defensiveness in her voice.</p><p>“Why don’t we find out?” Camilla said. “I’ve invited Alex to join us. I want you to take control of your cuckold and direct him in his duties in preparing Alex to satisfy me.”</p><p>Zack felt a sudden fear about giving a blowjob in front of Bella. She knew he’d sucked cock before, but to do so while she watched – and directed him, apparently – left him deeply nervous.</p><p>Bella seemed to notice as she reached out, took Zack’s hand, and guided him between her legs. She leaned closer, took his head in her hands, and gently kissed his forehead. “It’s okay,” she said softly. “I know what you are, Zack. I love what you are. You don’t need to be nervous.”</p><p>“I am,” he replied.</p><p>Bella tilted Zack’s head back until he was staring up at her and gently ran her thumb over his lips. “I love you, Zack, and I’m going to take care of you tonight. I’m going to make sure that you feel safe as you offer me your submission. I’m going to be better than I’ve been as your domme. Do you trust me?”</p><p>Zack nodded.</p><p>“Good,” Bella said softly before she leaned down and kissed him. Her lips felt warm and soft and when they parted her tongue gently swept into his mouth. As they kissed Bella grabbed a handful of Zack’s hair. He felt a touch of pain, but right alongside it was a sense of ownership on her part, and that made him feel safe in her grasp.</p><p>“Maybe dominance will come naturally to you,” Camilla noted as their kiss ended. “You certainly succeeded in making him feel safe and in your control.”</p><p>Bella sat back and lifted her skirt to expose her smooth thighs and her delicate lace panties. “Kiss me,” she instructed.</p><p>Zack leaned forward and pressed his lips against her pussy. The lace against his lips felt wet and it thrilled him that even a little bit of domination had apparently left Bella in a state of desire.</p><p>“I’ve found that referring to a submissive by something other than their name can be remarkably effective,” Camilla said. “Something as simple as saying ‘good boy’ or ‘that’s a good cuckold’ will make him feel that little bit of domination that he craves. You’ll want to reserve it for when he’s actually been good, of course, but don’t be shy about letting him know that he’s made you happy.”</p><p>“He certainly is being a good cuckold right now,” Bella said as Zack continued to kiss her pussy through her soft panties. “And when Alex gets here he’s going to prove that he really is committed to my happiness.”</p><p>“Are you looking forward to watching your cuckold suck cock?” Camilla asked.</p><p>Bella smiled at Zack, ran her fingers through his hair, and once again took a tight grip. “I am,” she said. “I wasn’t sure about it at first, to be honest. I didn’t entirely understand the purpose of it, but I see it now. I see the necessity of it.”</p><p>“That’s wonderful, darling,” Camilla replied. “For it is a necessity, especially as your relationship matures. The more you can do to dominate Zachary the happier you’ll both be.”</p><p>Bella reached down, pulled her panties aside, and guided Zack to her exposed pussy. He moaned at the joy of getting to push his tongue between her labia and taste her. There was something exceptionally kinky about worshiping her pussy while her mother watched, too.</p><p>“Mmm, that’s a good boy,” Bella said.</p><p>Zack moaned again. Hearing Bella utter those words had a surprisingly profound effect on his level of arousal, especially as her fingers remained tightly entwined in his hair.</p><p>The doorbell rang and Camilla stood. “That must be Alex. Now the exciting part of the evening can begin.”</p><p>Bella pulled back on Zack’s hair and he looked up at her with the sweet taste of her pussy still on his tongue. “I know you’re nervous and maybe a little bit scared. But you don’t have to be, Zack. You’re going to do what’s expected of you. You’re going to be a good cuckold. You’re going to prepare Alex to fuck my mother, just like she taught you, only I’m going to guide you through it. In a way, we’re both getting to practice playing our parts.”</p><p>“I’ll be good for you,” Zack said.</p><p>Bella smiled and rewarded him with a kiss as Zack heard Camilla and Alex enter the living room.</p><p>“Isn’t that beautiful?” Camilla asked. “A young couple learning their roles and exploring their pleasure together.”</p><p>“It is,” Alex replied. “I’m grateful you invited me to participate.”</p><p>“Well, Zachary needs a cock to suck on and I don’t think Luke is the kind of man that’s willing to cross societal boundaries in the name of making Bella happy,” Camilla said.</p><p>Bella sat back and adjusted her panties and skirt, hiding her pussy from Zack’s view. She stood and gave Alex a quick hug before gesturing towards the couch and saying, “Why don’t you two sit down so my cuckold can show you how eager his to play his part.”</p><p>Camilla took Alex’s hand and they sat on the couch with Zack on his knees in front of them. It was a situation he was intimately familiar with, only now Bella was there with him.</p><p>“Zack, I think this would be better if you were naked,” Bella said.</p><p>Zack stood and stripped as Camilla and Alex watched. His future mother-in-law took Alex’s shirt off, exposing his muscular chest and making Zack feel just a little bit embarrassed that he wasn’t in that kind of shape. He suspected that was Camilla’s intention, though, as she’d been quite clear that Zack wasn’t the same kind of man as Alex, that he was, in many ways, an inferior man.</p><p>Bella moved behind Zack, pressed her body against his, and ran her hands over his chest and stomach as he kissed his neck. “Are you going to be a good boy for me?” she asked softly.</p><p>“Yes,” Zack answered as Camilla smiled. It seemed that she was impressed with her daughter’s quick, full-throated embrace of her role as a domme.</p><p>“Are you going to suck cock for me, Zack?” she asked as her fingers encircled Zack’s cock.</p><p>He felt exposed in front of Camilla and Alex and he was a little embarrassed when he quickly reached an erect state, but Zack knew there was no reason to be embarrassed. They’d both watched him suck cock before. They’d humiliated him before. They’d watched him clean Alex’s cum from her pussy. They knew he was a cuckold.</p><p>“Yes, I’m going to suck cock for you, Bella,” Zack answered.</p><p>Camilla reached over and loosened Alex’s belt. She deftly unbuttoned and unzipped his jeans and worked them down to his ankles as Alex sat there with a smile on his face.</p><p>Bella kissed the back of Zack’s neck and whispered, “Be a good boy and get on your knees for Alex.”</p><p>Zack dropped to his knees and crawled between Alex’s legs. He looked up and saw the sizable bulge in the other man’s tight underwear. It was obvious that Alex was excited by what was unfolding in their living room, meaning he really was the perfect man for the job.</p><p>Bella surprised Zack by dropping to her knees behind him. She ran her fingers over his back and reached down to grasp his ass and squeeze it possessively. “I want you to do exactly as I say,” Bella whispered. “I want you to be a good submissive cuckold for me. Will you do that, Zack?”</p><p>“Yes, Bella,” he answered as he watched the bulge in Alex’s underwear get bigger. “I will. I’ll be good for you.”</p><p>“I have to admit, this is quite thrilling to watch,” Camilla remarked. “I’m already wet.”</p><p>“Remove his underwear,” Bella instructed.</p><p>Zack reached up and pulled down Alex’s underwear. His cock pointed skyward the moment it popped free. The mushroom head looked perfectly smooth and plump and a thick vein ran down the underside of the shaft. Zack couldn’t help but admire the sheer size of the cock that was now mere inches from his face.</p><p>Bella reached between Zack’s legs and stroked his cock. She teased the head with her fingers and kissed the back of his neck as he stared at Alex’s thick shaft. “Suck his cock for me, cuckold.”</p><p>Bella released Zack’s cock and he leaned forward and took Alex into his mouth. He closed his eyes and sucked like he’d done before, only now he was doing it in front of his girlfriend. He couldn’t help but feel humiliated, and yet that didn’t deflate his erection.</p><p>“This is so much hotter than I thought it would be,” Bella said.</p><p>“That’s good,” Camilla replied. “That’s very good, in fact. Your cuckold’s submission should turn you on. It shouldn’t even really matter what he’s doing. He could be sucking cock. He could be cleaning your pussy. He could be worshiping your body from head to toe. He could be getting fucked in the ass by a nice thick cock.”</p><p>Zack felt panic grip him at the idea of being fucked. He nearly pulled off of Alex’s cock and begged Bella to promise she would never make him do that, but he didn’t. He held fast with the other man’s dick in his mouth. He sucked like a good cuckold.</p><p>“Fucked?” Bella asked.</p><p>“Absolutely,” Camilla replied. “It really should only be used if he’s being particularly difficult or if it feels like his ego is getting in the way, but nothing is more effective for taming a submissive straight man than making him take cock in the ass. If you can find someone safe that will cum inside him, that would certainly tame his ego even further, but it’s not necessary.”</p><p>Alex groaned and put a hand on the back of Zack’s head, though he didn’t apply any extra pressure. Zack took the hint, though, and tried his best to swallow more of Alex’s cock. He gagged a little when it hit the back of his throat, but he quickly recovered and continued to fluff Camilla’s lover.</p><p>“Have you…have you ever done that?” Bella asked. “Had a submissive get fucked?”</p><p>Camilla reached out and ran her fingers over Zack’s shoulder and down his arm. “I have,” she said. “Only once or twice. In one instance I wanted to see if he would actually accept his fate. In the other I was trying to punish my submissive for disobedience. In both cases it was exquisitely pleasurable to watch, though I wouldn’t say it’s ever a necessity. There are many ways to control a man’s ego, ways that I will happily teach you, Bella.</p><p>Zack would have breathed a sigh of relief if he didn’t have a dick buried deep in his throat, for it seemed unlikely that he would ever have to get fucked, and he absolutely did not want to get fucked.</p><p>Bella kissed Zack’s back and grasped his ass once more. She spread his cheeks and he felt a finger dance over his asshole. A distressed sound escaped his throat and burbled out around the cock in his mouth. Bella laughed and her fingers found his cock once more. “Don’t worry, Zack. You won’t get fucked unless you lose your way as my submissive, but as I’ve learned today, that’s as much about me as it is about you. Now why don’t you suck on Alex’s big balls for me.”</p><p>Zack dropped down and took one of Alex’s testicles into his mouth as the thick cock he’d just sucked on rested against his forehead. He licked and sucked voraciously, for he was on a mission to give pleasure and prove that he was every bit the submissive cuckold that Bella and Camilla wanted him to be.</p><p>“I think he’s done a wonderful job,” Camilla said. “Don’t you, Bella?”</p><p>“I do,” she replied. “And I think I learned something very valuable today.”</p><p>“What’s that?” Camilla asked.</p><p>“That I’ve neglected Zack. That I’ve been a terrible domme and that he needs me to be better if he’s going to be the best, happiest version of himself. Also, that I actually like dominating him once I put my mind to it,” Bella answered. “And that I might really, really like the sight of my boyfriend sucking cock for me.”</p><p>Camilla laughed and stood. “Come, Alex. Let’s not waste that erection of yours. We’ll use the spare bedroom if that’s alright with you.”</p><p>“It is,” Bella said. “Enjoy yourselves.”</p><p>“You’ll send Zachary in to clean us both when we’re finished?” Camilla replied.</p><p>Bella grabbed Zack’s ass and said, “Of course I will. Until then, I think I’ll sit on his face.”</p><p>As Camilla and Alex left the room, Bella redirected Zack onto the living room floor as she stripped out of her skirt and panties. She sat on his chest and ran her fingers over his lips as he stared into her eyes, which seemed alive with lust.</p><p>“It was so much hotter than I expected to watch you give a blowjob, Zack,” Bella said. “You were better than I thought you’d be, too. Almost as if you’re a natural. Do you feel like a natural cocksucker, Zack?”</p><p>“I don’t know,” he replied.</p><p>“You’re certainly a natural submissive though, aren’t you?” she asked.</p><p>Zack felt a wave of emotion wash over him in an instant. At its core was a sense of inadequacy, as if Bella deserved someone that wasn’t a natural submissive. “I’m sorry,” he said.</p><p>Bella smiled and crawled off of him. She laid next to Zack and kissed him while her soft fingers ran down the side of his face. “Don’t be ashamed of what you are, Zack. The only time you should be ashamed is when you refuse to embrace what you are, and I suspect that won’t happen very often from now on, because I’ll be better for you. I know what I let you down over the past few months. I know that a submissive should be cherished by his domme, even if she’s also putting him through something painful or humiliating. I love you, Zack, and I’m going to cherish you. I’m going to learn how to be a better domme.”</p><p>They shared a long, tender kiss that filled Zack with a sense of warmth. “Thank you,” he whispered. “I love you, Bella.”</p><p>“I love you too,” she replied. “And now, I’m going to give you the privilege of making me cum as I sit on your face.”</p><p>Bella got on her knees, crawled over Zack’s face, and sat down, giving him the pleasure he promised. He put his tongue to work as the sounds of Camilla and Alex fucking floated down the hallway and reached his ears.</p><p>As Bella, Camilla, and Alex all moaned, Zack felt a sense of gratitude come over him. He had two women in his life that cared deeply for him despite his many faults and he was going to sexually service both of them in quick succession. In many ways, he was a very lucky man who was about to embark on a very exciting life, and that was well worth all the gratitude in the world.</p>