Sheena couldn't believe she was doing this. But it felt so good to have a cock in her mouth again. She just never imagined it would be her own brother's the next time she did it.
He moaned softly and she hoped he could remain quiet. Their parents were in the next room and they could not be caught like this.
It had started at the birthday party for their cousin Rick. He was turning 18. Sheena had never liked the little shit so had drifted off to the barn. Her brother, who had never liked Rick either, was already there, playing around with the rope swing.
"Hey, that's mine," Sheena said, shoving him.
"I was here first," he said, playing along. They had always fought over the swing when they were kids.
"Why are we even here?" Sheena said, already giving up. "Rick is still such an asshole."
"Actually, he's worse than ever," Brian said, tossing her the rope. "He's been bragging all day about the group sex he's going to have tonight with his three girlfriends."
"Yeah, right," Sheena scoffed. "I wish he would give it up. We all know he's gay."
"He's in deep denial," Brian said.
"I guess we should feel sorry for him - that he's so insecure that he doesn't realize we don't care about that. Hell, Uncle Joseph is way out and no one cares."
"Rick hates Joseph."
"Of course he does," Sheena said. "Idiot."
She hopped up on the rope and did a little swing, not knowing if she dared to go into the rafters and swing down into the hay piles like she used to.
She let out a soft little scream when her brother suddenly grasped her hips and began running backwards. She laughed when he let her go with a push so that she could swing in a wide arc across the nearly empty barn. Every time she swung back he would push her again, his hands full on her ass as he did so.
When she let go and flew gently into the nearest hay pile she landed laughing. He plopped down next to her, putting his hands behind his head.
"Were you grabbing my ass?" Sheena joked, situating herself in the hay.
"So what if I was?" he said. "How else am I supposed to push you?"
"My back, maybe?"
"Look, your ass is so big it's hard NOT to grab it - hey, knock it off!"
He curled into a ball, laughing as she playfully slapped at him. He finally rolled over, grabbed both wrists and pinned her down in the hay. They wrestled like they had as children until Sheena finally had him pinned on his back, straddling his hips.
"I can still take you," she laughed, letting him go. She sat up, but remained on top of him.
"You - you better get off, Sheena," he said, his tone suddenly different.
"What, you feel emasculated?"
"No, it's not that - just - Sheena, please," he said, grabbing her hips.
Sheena gasped when he quite suddenly lifted his own hips, groaning deep. She could feel his hard cock pressing against her.
"Ah fuck," he whispered, realizing what he'd done. "Sheena, I'm sorry, it's involuntary."
"I - it's all right," she said, still stunned, blushing. "I mean - I know it is."
And that was when she pressed down, making them both gasp through a groan.
"What are you doing?" he whispered, sounding shocked, but his fingers held her hips even tighter.
"I don't know," she whispered back.
"Stop, unless you want something really bad to happen."
"Bad?"
"I'm gonna shoot!" he groaned desperately and began thrusting up.
"Oh my god," she whispered, but began rocking in time.
"No, no," he moaned. "Oh my god, no." But he kept thrusting. "Oh god, I'm gonna shoot in my pants!"
She got off of him then and they both fought to get his pants down. As soon as they had his jeans and boxers halfway down his thighs, Brian rolled onto his side away from her and moved his hand down to stroke himself off. Sheena sat up and looked down to watch, her eyes wide. When her brother came, groaning softly, she bit her bottom lip.
Brian relaxed, remaining on his side, breathing deeply. He kept his eyes closed. Sheena knew he was ashamed.
But she wasn't. She was shocked but she wasn't ashamed to look at her brother. He was beautiful.
"What - what are you doing?" he murmured moments later. But Sheena didn't answer him.
Her lips caressed his hip bone as her hand slid down to gently grasp his ass.
"Sheena, don't," he said but his voice was weak. He rolled onto his back as her lips moved to his stomach. She pushed his t-shirt up as she licked his stomach up to his chest. He grunted softly as her teeth moved across his nipple.
"What is happening?" he whispered but still she didn't answer as she sucked his nipple, running her hands over her brother's chest and stomach.
She pulled away then, looking at her brother, saying nothing. She saw his eyes drop to her breasts - breasts that were rising and falling quickly. He bit his bottom lip, still looking.
"Oh for god's sake," she rasped. She grasped his wrist and pulled his hand onto her breast.
"Ah Jesus," he groaned, squeezing his sister's tit harshly but not enough to hurt. "Oh god, Sheena, what are we doing?"
"Shut up you idiot," she whispered. "And just do it."
"I've always wanted to," he said, but she barely heard it.
He moved over her, pulling both her t-shirt and sports bra up, exposing both breasts to him. He grasped both in his hands and moved his mouth over one, sucking greedily as his hands kneaded.
Sheena buried her fingers in his hair, writhing beneath him. She laughed softly when one of his hands left her breast and moved between her legs. He hooked his arm down so that his hand was on her ass, his forearm pressing hard against her cunt.
She rode his arm as he suckled at both breasts and in mere moments she stifled her cry as her little brother made her come. He kept sucking until her body stopped quaking and only then did he pull back.
They lay tangled together for a while, enjoying the afterglow. They came back to earth when they heard a firecracker pop in the distance.
"We should get back," Brian murmured but then kissed the side of his sister's breast.
"Yeah," Sheena agreed.
They untangled and stood, redressing as they did. Sheena started out of the barn but she stopped when she felt Brian's hand on her shoulder. She turned to face him.
"What now?" he asked.
She stared at him for a moment then said, "What do you want to happen now?"
"I don't really know."
"Then let's not decide," she said. "We'll think about it. Talk tomorrow."
"All right."
"But Brian - I don't regret it. I don't think I ever will."
He smiled widely and that made Sheena smile as well. "Me neither," he agreed.
They had agreed to talk the next day, but Sheena couldn't wait. She snuck down the hall to her brother's old room, where he was sleeping, and crawled into bed with him. He was awake and didn't look surprised or upset at these turn of events.
Sheena was already naked but Brian was in his pajamas. They wordlessly undressed him and then he pulled her body against his, running his hands over her back and ass, simply holding her close.
"You have such a great body," Sheena whispered.
"Oh god, so do you," he groaned.
Sheena worked her hand between them and cradled her brother's hard cock in her palm. "I can't believe your cock is this big," she whispered. "I always pegged you as a pencil dick."
"Fuck you," he laughed then groaned as she squeezed him.
"I want to suck you," she said, then kissed his neck.
"Please," he said and she could tell how much he wanted it.
She crawled under the covers and proceeded to give her brother the best blow job she could muster. She used her hands, her lips, her tongue. He gasped so harshly when she sucked his balls into her mouth that she was afraid he'd cry out but he was able to stifle all but a shaky, "Oh my god."
