<p><a href="https://www.patreon.com/beccabellamy/posts?filters%5Btag%5D=bfs%20best%20friend">Click here</a> to read the previous parts of the story.</p><p><img data-media-id="118480686" src="/2f/00/2f0078b07eafd6c8c0337b6fdb01cc83e66df680ba88c974b212df0560635b13.jpg"></p><p>“How do I look in this dress?” Marie asked as she stepped confidently into the living room.</p><p>Henry looked up from his phone and soaked in the sight of his girlfriend’s lean, lithe body in a short, low cut, floral print dress with spaghetti straps. She wore a pair of strappy wedge heels with it and all Henry could think was that she’d managed to strike a perfect balance between casual and sexy as hell.</p><p>“You look perfect,” he said. “The heels make your legs look impossibly long and the dress is a little bit flirty, a little bit cute, and pretty damn sexy. What’s the occasion?”</p><p>“Isaac invited me to a party,” Marie answered. “I was thinking of wearing this dress.”</p><p>“If you wear that dress people are going to think that you’re Isaac’s girlfriend,” Henry said with more than a little insecurity in his voice.</p><p>Marie smiled and spun around, making it seem like she was delighted with the notion of people thinking of her as Isaac’s girlfriend. “If you really think about it, I kind of am Isaac’s girlfriend,” she said. “It’s been almost two months since we first fucked and I spend the night with him at least once or twice a week, sometimes more. We go on dates, we have lots of sex, we talk and text all the time.”</p><p>“You do those things with me too,” Henry said.</p><p>Marie approached the couch and straddled Henry. His hands moved up her thighs and he caressed her ass, bringing a smile to her face. “I know I do. I’m your girlfriend, Henry. I’m saying that I’m also Isaac’s girlfriend.”</p><p>Henry opened his mouth to say something but Marie leaned down and kissed him. Her tongue slipped past his lips and she moved her hips over his crotch, quickly luring his cock into an erect state.</p><p>“I want you to be my girlfriend,” Henry said.</p><p>Marie kissed his neck and moaned. “But I am your girlfriend.”</p><p>Henry closed his eyes and marveled at how pleasurable a few kisses on the neck could be. “But I want you to be mine, Marie. Just mine.”</p><p>“Mmmm, I know you do, baby, but that’s not what I want,” Marie replied. She kissed his neck and gently sucked on his flesh before her tongue danced over it. “I want you both. I want what you give me. I want what Isaac gives me.”</p><p>Henry was caught between two distinct, potent emotional and physical experiences. On the one hand he wanted to demand that Marie stop seeing Isaac so they could return to the relationship they used to have, the one that didn’t include sharing her with another guy and dealing with the fact that the other guy fucked her far better than Henry did.</p><p>On the other hand, Henry had spent the past two months having great orgasms fueled by the fact that his girlfriend regularly fucked his best friend. He enjoyed the sloppy seconds sex. He enjoyed the blowjobs and handjobs filled with dirty talk as Marie worked to make Henry cum while telling him how good his best friend was at fucking her.</p><p>Henry couldn’t find a happy medium. He couldn’t get his mind to settle into a place where it accepted that he couldn’t give Marie everything she wanted and that the only way she seemed able to find true happiness was by being with two guys at once.</p><p>“What about what I want?” Henry asked.</p><p>Marie smiled and reached down to unzip his pants. She freed his stiff cock, pulled aside her thong, and took him inside her. Henry moaned as the heat and wetness of his girlfriend’s pussy enveloped his cock.</p><p>Marie rode him slowly and asked, “Isn’t this what you want? Isn’t your cock hard because I want to wear this dress for Isaac? Doesn’t my pussy feel even better because you know you have to share it with your best friend? Don’t you like that I love fucking him?”</p><p>Henry wanted to lie and tell her he hated all of that. He wanted to try and reclaim his girlfriend, but he knew she’d see right through him.</p><p>“Marie…please,” he said. “Just stop for a second.”</p><p>Marie sat still on his cock and caressed Henry’s face. “What is it?”</p><p>“This can’t go on forever,” Henry said. “We both know that. At some point you’re going to have to choose. You can’t keep dating two men forever. You can’t marry two men.”</p><p>“I could,” Marie replied, “but I don’t want to, so you’re right. This can’t go on forever. At some point I’ll have to choose, or I’ll just break up with both of you.”</p><p>Henry felt a surprising sense of panic as he considered the notion of being without Marie. It was quickly followed by an overwhelming urge to have her pick him. He needed to be the one that Marie wanted to be with. He needed to do whatever it took to make that happen. His body and brain were telling him that he couldn’t be without her and Henry agreed.</p><p>He reached up to caress his girlfriend’s face and then pulled her lips to hers for a tender kiss. “This dress is perfect,” he said. “Isaac’s going to love it and you’re going to be the hit of the party. Every other guy there is going to be jealous that he’s with you. Every other girl is going to be annoyed that they don’t look anywhere near as good as you do. It’s perfect.”</p><p>Marie smiled and kissed him as she lifted her pussy off his cock and sat down once more. Henry moaned into his girlfriend’s mouth and she rode him faster. His hands moved to her ass and he grabbed her flesh and helped her bounce harder on his cock.</p><p>“Marie…your pussy is perfect,” Henry said. “I can see why Isaac loves fucking you. I can see why he wants you so often. Fucking you is better than fucking any other girl. Of course he wants you as often as he can have you.”</p><p>Marie moaned and bounced harder as Henry watched her breasts jiggle in the beautiful dress. He leaned closer and kissed her flesh as it rocked in front of his face. Marie pushed the straps from her shoulders and unhooked her bra, freeing her tits. Henry took one of her nipples in his mouth and flicked his tongue back and forth over it as her moans filled the living room.</p><p>“I’m close,” she said. “Cum inside me. Cum inside me, Henry.”</p><p>Henry switched to her other nipple and moaned as her pussy somehow felt even better. He wasn’t sure what Marie was doing, but it felt spectacular and it was absolutely going to push him over the top into an incredible orgasm.</p><p>“I’m cumming!” Marie cried out.</p><p>Henry kissed his girlfriend as he joined her in climaxing. He pumped his load into her pussy and squeezed her ass as she moaned into his mouth.</p><p>Their kisses continued after their mutual climaxes and Henry let his hands roam over her body, from the fabric of the soft dress to the bare flesh of her thighs and ass. It all felt spectacular and he could have stayed like that all day if she’d let him.</p><p>“When’s the party?” Henry asked as their kiss finally ended.</p><p>“Tonight,” Marie answered.</p><p>“Will you be staying the night at Isaac’s?” he asked.</p><p>Marie nodded.</p><p>“Good,” Henry said. “I hope you have a great night. I really do.”</p><p>“I know you do,” Marie replied.</p><p>“When the time comes, I want you to choose me,” Henry said. “I just want to put that out there. I want to be the one that gets to love you forever.”</p><p>A bright smile broke across Marie’s face. “Are you saying you love me, Henry?”</p><p>“Yes,” Henry said. “I love you, Marie.” It was the first time he’d utter those particular words to his girlfriend, but he wasn’t lying. He loved her.</p><p>Marie reached up and gently caressed his face. She leaned closer and they shared a soft kiss before she said, “I love you too.”</p><p>Henry pulled her close and held his girlfriend tight as his cock softened inside her. He wasn’t sure how he was going to get Marie to choose him when the time came, but he was going to do it. He was going to do whatever it took to be the one she wanted to be with.</p><p>“This is really sexy,” Marie said as she admired her body in the fitting room mirror. She glanced over her shoulder at Henry and added, “You made a very good choice.”</p><p>Henry smiled and let his eyes wander to his girlfriend’s ass. It looked spectacular in the tight lace of the bodysuit he’d picked out for her. “I was thinking you could wear it for Isaac,” he said.</p><p>Marie spun around with a smile on her face. “Really? You weren’t thinking I should wear this for you?”</p><p>“I wouldn’t mind if you wore it for me, but in truth I like lighter, looser, more feminine lingerie like a baby doll or a camisole. Isaac likes this sort of thing and I’m certain he’ll see you in it and feel an overwhelming need to have you,” Henry explained.</p><p>Marie stepped closer and Henry looked up at her from the hard wooden bench he was seated on. She ran her fingers down the side of his face and they came to rest under his chin. “How do you know what sort of lingerie Isaac likes?”</p><p>“I lived with him for years,” Henry answered. “He’s not exactly shy about what he likes in a woman, including the sort of lingerie he wants to see her in.”</p><p>“So you brought me here so I could buy something naughty to wear for your best friend. Is that what you’re saying?” Marie asked.</p><p>Henry nodded.</p><p>She smiled and asked, “Why would you do something like that?”</p><p>“Because it’s not something Isaac would ever do,” Henry answered. “He’d never put your pleasure so far above his. I will, though.”</p><p>“I think you’re right about that,” Marie agreed. “But he does fuck me better than you.”</p><p>Henry closed his eyes as a wave of pleasure unlike any other moved through his body.</p><p>“Maybe you’re just being selfish,” she said. “Maybe what really turns you on is knowing that your best friend is fucking me. Maybe what makes your dick harder than anything else is the idea that my pussy craves Isaac’s cock.”</p><p>Henry opened his eyes and looked up at his girlfriend. “That’s true,” he said. “I guess I am being a little selfish. It’s not all pleasure, though. There’s agony too. Every time I watch I feel that agony along with the pleasure. I still want it, though. I want it for you. I want you to wear that lingerie for him. I want him to feel that crazy desire he gets when he sees how much you want him. I want you to have the sex you crave, that you deserve. I’m getting something out of it, for sure, but I’m suffering too, but I’m willing to suffer for you. Eager, even.”</p><p>Marie smiled. “I know you are, and you deserve a reward. I want you to go pick out something you’d want me to wear for you.”</p><p>“Really?” Henry asked.</p><p>“Yes. Go. Now,” she instructed.</p><p>Henry stood, checked to make sure he wasn’t sporting an obvious erection, and rushed out of the fitting area and into the store. He made a beeline for the section he’d spotted earlier and grabbed a sheer pink baby doll with a soft satin bow that would rest between Marie’s breasts.</p><p>He headed back towards the fitting area, gently knocked on the door of Marie’s room, and stepped inside to find her naked.</p><p>She took the baby doll from him, held it against her body, and said, “Very nice. Now sit.” Henry sat as Marie worked the baby doll off the hanger and gently pulled it over her head. It floated down over here body and she took a quick look at herself in the mirror before spinning around and asking, “Do you like it?”</p><p>Henry nodded. Marie looked perfect. She was a feminine dream come true in the soft, floaty, sheer lingerie. “You’re perfect,” he said.</p><p>Marie stepped forward and slowly dropped to her knees in front of Henry. She leaned closer, softly kissed his cheek, and whispered, “You’re sweet. Now I’m going to suck your cock, but I need you to be quiet. Can you do that for me?”</p><p>Henry popped an erection at the idea of getting a blowjob in the fitting room. He nodded and sat back as Marie slowly, gently unbuttoned and unzipped his pants and pulled them down to his ankles. She wrapped her fingers around the base of his stiff shaft and leaned forward to kiss the head.</p><p>“I know that you experience at least a little agony when I fuck Isaac,” she said softly. “I know it was hard when I went to the party with him. I know you were jealous, especially when you saw the pictures he posted on Instagram. I know it hurt that I spent the night with him and that I spent most of the next day fucking him. I know it hurts that he fucks me more than you do.”</p><p>She took Henry’s cock between her soft lips and swirled her tongue around the tip. He kept his mouth closed and swallowed the moan that desperately wanted to escape.</p><p>“Isaac doesn’t feel that pain,” Marie said. “Do you know why?”</p><p>Henry shook his head.</p><p>“Because he knows he’s better than you,” she said.</p><p>Henry closed his eyes and swallowed another moan as Marie’s hand moved up and down his shaft.</p><p>“He doesn’t feel insecure because he knows he fucks me better than you do,” she said. “He knows he makes me cum harder than you do.”</p><p>“Marie…” Henry said, but he couldn’t find the words to finish his thought.</p><p>“He fucks me better than you do,” Marie said, “but he doesn’t do everything better than you. You’re right, Henry. You care about me. You love me. You’re willing to put my needs first. That means something. That’s why I’m going to show you how I’ve learned to deepthroat since I’ve been with Isaac.”</p><p>“What?” Henry asked.</p><p>Marie answered by swallowing the entirety of his cock in one go. She held it in her throat and Henry gripped the edge of the bench as an entirely new sexual experience unfolded between his legs. Marie’s throat felt spectacularly good, and when her gag reflex triggered it somehow felt even better.</p><p>“Did that feel good?” Marie asked as she pulled off his cock and slowly played with the head.</p><p>Henry nodded.</p><p>“Good. Now I’m going to finish you off and you’re going to cum in my mouth. Do you understand?” she asked.</p><p>Henry nodded again.</p><p>Marie smiled and swallowed his cock again, but this time her head bobbed up and down in his lap. She swallowed him over and over and all Henry could do was close his eyes and enjoy the incredible, sensual journey his girlfriend was taking him on.</p><p>He thought about her comment about deepthroating. She said she’d learned it since being with Isaac. Had Isaac taught her? Had she learned it purposefully to give Isaac better head? Was Marie trying her best to be the kind of girl Isaac wanted to be with? Those thoughts swirled in his head as Marie’s throat brought Henry right to the edge of orgasm. A few moments later he came while thinking about his girlfriend giving his best friend the same sort of deepthroat blowjob. Marie held his cock in her throat as he released and it seemed that his cum slid right into her stomach, as she had nothing in her mouth when she pulled off his shaft and smiled.</p><p>“I think I’ll buy both naughty little pieces of lingerie,” she said.</p><p>“Actually, I’d like to buy them,” Henry replied. “If that’s okay with you.”</p><p>Marie kissed his cock, smiled, and stood. “Generosity is a very good quality in a boyfriend,” she said.</p><p>“I’ll have to remember that,” Henry replied. “After all, nothing is more important to me than being a good boyfriend.”</p>