Kayla walked away, hearing her father ask, “Mike, are you two fighting?”
“No, Dad. I probably did something to rub her the wrong way.”
Kayla put her hand over her mouth, preventing her from laughing out loud at her brother’s pun. God, she loved him so much, even though he was being very naughty for some reason. She guessed he was just as horny as she was, and probably a few beers didn’t help.
The party ended a few hours later, and Kayla did her best to stay away from Mike, not knowing what he would do next.
————–
Meredith told her parents that she would help Billy pack and spend the night at his apartment so that she could see him off in the morning. Billy said his goodbyes to his parents, making his mother cry. However, he reassured her that they would see him occasionally, plus there was always video chatting.
Meredith helped him pack his belongings, remaining unusually quiet.
“Is everything okay, sis?”
Meredith frowned, taking a deep breath. Tears formed in her eyes. “I’m going to miss you. I know it sounds strange since I’m the one that is away most of the time, but it just feels different. Somehow, it seems permanent.”
Billy hugged her. “You’re not going soft on me, are you?” he said with a slight laugh.
Meredith looked at him. “No, yes, shit, I don’t know. I love you. I know we’ll never be like Kayla and Mike, but somehow your leaving makes me feel alone.” Meredith and Billy had never defined their relationship. When they saw each other, they had wild passionate sex when they could. However, sometimes they didn’t, especially if attempted to have a normal relationship with someone else. It was always more lust than love.
Billy kissed her forehead. “I thought you were having fun with the Mosley brothers?”
Meredith had told Billy about her wild sexual adventures, except the gangbang her freshman year for the initiation ceremony. She wasn’t sure if he could handle that story, so she kept it a secret. Meredith smirked. “They’re gone. Both of them are in the NFL.” She looked into her brother’s eyes. A fake smile spread across her lips. “I’m sorry. I don’t want this evening to be a downer.” She kissed him and then led Billy by the hand to the couch. Meredith made him sit down before straddling his lap. Her lips found his, smashing together as their tongues danced in each other’s mouths.
Billy grabbed the bottom of his sister’s shirt, whisking it over her head. Her huge breasts spilled out the top of her ill-fitting green-laced bra. He buried his face in her inviting cleavage, breathing in her aroma. Meredith reached behind her back, unsnapping her bra, letting her enormous tits free.
Billy grabbed each breast. “Are your boobs getting bigger?”
Meredith caressed the back of her brother’s head. “I think so? I used to wear a 36D bra, but they no longer fit.”
Billy briefly sucked on each breast. “Well, they’re beautiful no matter what size they are. You’re beautiful.”
Meredith smiled wide. “Oh, Billy. I love you so much.” She kissed him deeply. “Before tonight is through, I want you to cum in my mouth, pussy, and ass. Are you up for it, big brother?”
Billy smiled. “When do we start?” He asked with a glimmer in his eye.
Minutes later, after stripping off all of their clothes, Meredith knelt between her brother’s legs stuffing his erect cock down her throat. She deep-throated him several times, making Billy moan with pleasure. After his dick was slick with her saliva, she placed her brother’s decently-sized manhood between her voluptuous boobs and titty-fucked him. Meredith squeezed her still-growing melons around Billy’s throbbing cock, sliding them up and down. The feeling of his cock sliding between his sister’s huge pillowy tits was more than he could take. “Oh god, Mere. I’m going to cum.”
Meredith plunged her mouth down, surrounding his rigid shaft. Her hand began stroking him while the other fondled his churning balls. His hips bucked as he shot a large load of cum into his sister’s eager mouth.
Billy recovered quickly after eating Meredith’s juicy pussy. She had a fantastic orgasm while her brother sucked and nibbled on her clit. Meredith made him sit on the couch while she rode him like a bronco. Her hips slammed up and down on his stiff shaft while Billy sucked on her bountiful breasts. She grabbed the back of his head, keeping his mouth pinned against her sensitive orbs like she was breastfeeding him. Another climax began to surge through her body as she rode her brother.
“Aaaahh, oh Billy. I’m going to cum. Are you close?” Meredith groaned.
“Mmmm, hhhmmm,” Billy responded while continuing to suck on her luscious breasts.
Meredith ground her hips around her brother’s stiff shaft, rubbing her clit furiously against his cock. “Aaaahhh, shit, I’m cumming!” she screamed.
Billy stopped suckling her breasts and smashed his lips onto hers just as he shot his load deep inside her pussy. His hips continued spasming again and again as he continued ejaculating.
They moved to Billy’s bed for the evening’s final coupling. They made out for a while, allowing Billy to recover again. When he was ready, they moved into a spoon position, and he spread some lube on her anus. Then, slowly, he pushed his erect cock inside her puckered hole. Meredith had done much more anal than Kayla, quickly taking her brother’s penis inside her rectum. Billy slowly ass-fucked her while they kissed, and he fondled her breasts. Since he’d already come twice, Billy could hold out for a long time. Meredith had two orgasms while her brother fucked her ass, with her fifth climax looming. Then, sensing that she needed more intense stimulation, Meredith repositioned so that she was on all fours. Billy got behind her, and his hands roamed over her prominent butt. Finally, he stuck his face between her cheeks, licking her asshole.
“Aaaahh, your tongue feels so good,” Meredith moaned. “Now fuck your little sister hard with that wonderful cock of yours,” she begged.
Billy rubbed his stiff dick between the lips of her vagina, coating it in her juices. He easily slid back inside her ass with one push. Then, grabbing her hips, Billy began sliding his cock in and out of her puckered hole. Eventually he picked up speed and force, slamming deep inside Meredith with every thrust.
Meredith grabbed onto the headboard of Billy’s bed to keep from falling face-first. “Oh fuck,” she wailed. Her beautiful massive breasts swung back and forth like an erotic pendulum. Billy kept up a torrid pace. Finally, he placed his feet on the bed, allowing him to squat behind his sister’s stupendous ass. This gave him the leverage he needed to jackhammer into her.
“Oh my god, Billyyyyy,” she cried out. Her body was on fire. This last orgasm was going to be cosmic.
Billy kept slamming into his sister. He was trying to hold out for as long as he could, but his aching balls were red hot and churning. “I’m going to cum, sis.”
“Yes, yes, I’m almost there. Keep fucking me,” Meredith pleaded.
Billy erupted so hard inside his sister’s ass that his balls hurt.
Meredith could feel her brother’s hot cum flooding her ass. Sweat beaded everywhere on her body as her best climax of the night exploded inside her. Her pussy leaked juices that ran down her legs, and her ass clamped around Billy’s cock milking his shaft for every last drop of cum. Finally, she released the headboard falling forward on her face. Billy collapsed with her, landing on Meredith’s back with his dick still embedded in her ass.
Meredith’s head was spinning as she tried to catch her breath. Each of her five orgasms increased in intensity, making the last one a new standard for cumming.
Billy kissed her cheek while grinding his cock inside her ass. “How was that?”
Meredith chuckled breathlessly. “You’re the best big brother a sister could ever ask for.”
—————–
Meanwhile, back at the O’Neill’s house, Kayla and Mike helped their parents clean up from the party.
“Is there anything else you need help with, Mom?” Kayla asked. “I want to take a shower before bed.”
“No, Sweetie,” her mother said, throwing some paper plates into the trash. “Go ahead; your brother’s outside cleaning up the last of it.
Kayla went downstairs and into the bathroom. She turned on the water to the walk-in shower, pushing the straps of her dress down her shoulders, letting the garment slide off and pool at her feet.
The tepid water felt good on her heated skin. She let the shower cascade over her hair and down her body. She was still a little worked up from Mike’s naughty teasing. Her hands ran over her full breasts, tweaking her rosy nipples, making her wanton pussy tingle. Kayla dropped her right hand, letting it glide down her stomach and over the neatly trimmed patch of red pubic hair. Her fingers dipped into her hot muff, sending a feeling of relief to her brain.
“Do you want help with that?” a voice called behind her as she felt hands grab her ass.
Kayla whirled around. “Mike! What are you doing?” she sternly asked in a whispered tone.
Mike was nude. His enormous hard cock bobbed up and down between them. “What does it look like I’m doing?” He stepped forward, grabbing his sister around the waist and pulling her close.
Kayla placed her hands on his chest. “Are you crazy? You’re going to get us caught.”
Mike leaned in, kissing her. “Relax, they’re still cleaning up. They won’t even notice,” he said, kissing her again.
Kayla pushed him away. “What’s gotten into you? First the stunt you pulled at the picnic table, and now this.”
Mike pulled her close again. His rigid shaft nestled against her mound and stomach. “You wanted me to be more spontaneous. So that’s what I’m trying to do, Dr. Frankenstein.”
Kayla giggled. “Yes, so it would seem I have created a monster.”
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