Author's Note: While this story and its various chapters are primarily incest themed, it will often contain things such as excessive cum, anal play/pegging, and whatever else amuses me at the time. Reader discretion is advised.
****
Jaime and Emily had been caught. They'd finished having sex for the very first time, then walked straight into their older sister Lilith. She was smirking triumphantly at them with her arms folded and her eyebrow raised, practically daring them to tell her it wasn't what it looked like.
"It's not what it looks like," Jaime said desperately.
Lilith eyed him up and down, then did the same to Emily. Both of them were completely naked, and Emily was covered in gallons of her brother's cum. Emily was a little quicker than her brother in admitting defeat.
"Ok, it's exactly what it looks like," she said.
"No shit," said Lilith. "I'm impressed, little bro. That's quite a load you gave your sister."
"Yeah, I was wondering about that," said Jaime. "Is that normal? Because it doesn't seem normal."
The girls ignored him. They were busy staring each other down. Lilith had a significant advantage because not only did she hold the moral high ground, but cum kept dripping in Emily's eyes.
"Are you going to tell?" Emily finally asked.
Lilith stayed silent for a moment before answering just to make her sister squirm. "No. I don't think so. You guys'd get in a little too much trouble for it to be funny."
"Actually," said Jaime. "We shouldn't really get in too much trouble. We looked it up. It's not illegal if we really, really want to do it."
"Pff, I know that," said Lilith. "I have a pretty good handle on the Littown legal code, thank you very much. I need to for my job."
"What, bartending?"
"She runs a strip club," Emily said.
"But she always said she was bartending at night, and that's why...." Jaime paused and examined Lilith critically. "Oh, you just didn't want Mom to know you're a stripper. That makes sense."
"Hey." Lilith jabbed a finger at her brother's chest. "I'm not a stripper. I run a strip club. There's a difference."
Jaime took a meek step back. "Sorry," he mumbled.
"You better be." Lilith pointed back and forth between Jaime and Emily. "And both of you owe me for shutting up about this. I hope you know that."
"Yeah, we got it," Emily said. "Now if you'll excuse me, I really need to get this stuff off me before it hardens into a protective shell."
Emily finally made it to the bathroom and started the shower running. Jaime remained out in the hallway, unsure if he was dismissed or not. Lilith's expression softened slightly at his somewhat pathetic nervousness.
"Hey, by the way, congrats on the sex marathon, Jai," she said. "Very nice for your first time. And with your own sister no less."
"Uh... thanks?"
"Oh yeah, and I got you something too. Hang on a sec." Lilith vanished into her room, then came right back with a small bag in her hand. "Sorry I didn't wrap it or anything, but happy birthday anyway."
Jaime was both relieved that the blackmail portion of the night was over, and curious as to what Lilith could have gotten him. He reached into the bag and pulled out....
"Lil?"
"Yeah?"
"What's this?"
"A butt plug. Duh. Says right on the package."
That's what Jaime thought it was. He'd just assumed he must have been terribly wrong about what he was seeing.
"Why did you get me a butt plug? What am I supposed to do with it?"
"Well, traditionally one shoves it up one's butt. You could try that if you want. Or maybe put it up Emily's butt if you guys want, since you're an item now and all." Lilith shrugged. "It's yours, dude. Do whatever you want. Shove it in the back of a drawer and forget it if you so choose. I just thought it'd be nice to have to option to experiment if you wanted to."
"Does this have anything to do with you getting Em a vibrator for her birthday? Is this going to be a theme?"
"Maaaybe. Seemed a little silly to get you a vibrator too, though it would have been cute for you guys to match. Maybe if I get her a butt plug too...." Lilith yawned and stretched. "Anyway, long day. Gonna go fall unconscious for several hours."
"Good night, Lil. And... thanks."
Lilith gave her brother a big hug, seemingly unconcerned by his nudity. "No problem, bro. Oh, and there's a little thing of lube in there too. Lemme know if you need to be hooked up with some more."
She winked, then sauntered away terribly pleased with herself. Jaime was left naked and holding a sex toy he'd never so much as contemplated owning. He tossed the bag in his room, then sought out the reassuring company of his new incestuous lover.
Emily had made a good start on cleaning herself up, but was still quite a mess. Jaime got in the shower with her and helped her wash off. This meant that he got to run his hands all over his sister's wet, slippery body. His cock kept poking Emily, or getting squished between their bodies. They were both getting super horny again, but somehow managed to get Emily all cleaned up before they acted on their feelings.
"I know we just had sex for literal hours," Emily said, looking deep into her brother's eyes as water cascaded around them. "But I really want to feel you inside me again like right now."
"I love you and your hot body so much," Jaime said.
They kissed hungrily, their hands unreservedly groping around for anything and everything. Emily then spun around and braced herself against the shower wall. Jaime took careful aim and shoved his cock hard inside her tight, needy pussy from behind. Once buried, he held still for a moment to savour the sublime, heavenly experience of being so fully connected to his sister; the girl he loved with all his heart and penis.
Emily was less patient. She rocked her hips back and forth, trying to get some action going. She craved the feeling of her brother sliding and in and out of her. Being pounded by his cock was the greatest experience in whole of the universe for her.
Finally Jaime took the hint and grabbed Emily's hips. He pulled back until only his tip remained inside her, then slammed forward with such force that one of the shower tiles cracked. Emily moaned in pure, delirious pleasure as he expressed his love for her in the most primal way possible.
The love struck siblings would have fucked for hours--again--if not for the hot water running out on them. Reluctantly, and with more willpower than either knew they possessed, they disentangled their genitals and got out of the shower. They helped each other dry off, which did nothing to help them calm down. Jaime remained fully erect, his cock pointing at his sister like a compass as they moved around.
"It's very late," Emily said regretfully. "We have school in the morning."
Jaime nodded. "We probably should try to get an hour or two of sleep."
They stood there awkwardly for a moment, each secretly hoping the other would jump them and fuck their brains out. Then, with heavy hearts, they went to Jaime's room. His bed was still usable, unlike Emily's, so they'd have to share it. They perked up at the thought that at least they'd get to snuggle together all night, or rather what was left of the night.
It was a struggle to find a position where Jaime's indefatigable hard on was comfortable for both of them. Eventually they managed to nestle it between Emily's thighs. Then, holding each other tightly, they went to sleep.
****
Jaime was the first to awaken. His eyes opened to the cracks of light just beginning to appear from the dawn. His beautiful, naked sister was exactly where he'd left her; snuggled in his arms. His cock remained just as painfully erect as before. There was no way he'd make it through another day at school if he didn't get to cum first.
He carefully separated himself from his sleeping sister without waking her. She looked so peaceful and innocent, not at all the brother-craving sex machine he now knew her to be.
Emily's mouth was slightly open in her slumber. Acting on a wild impulse, Jaime brought his cock right up to it. He inched forward slowly until the tip was caressed by her sensual, red lips. A drop of his precum fell onto her tongue.
Emily had accidentally tasted a fair amount of her brother's cum the night before. So much of it had fallen on her lips and in her mouth that it had been unavoidable. Her body now recognized the taste and, of its own volition, reacted favourably to the known source of absolute pleasure.
Jaime gasped as his sister's lips moulded themselves to his cock head. He thrust forward involuntarily, going deeper into her mouth. Her tongue flicked across his tip, and her mouth began to make sucking motions. He couldn't tell if she was having a weird dream, or if somehow she recognized what was happening even while unconscious.
Jaime pushed further still into his sister's welcoming mouth. She accepted him greedily, forming a vacuum seal around every new inch of cock that gave her. Soon he was entirely inside her mouth. Her lips and tongue massaged the length of his shaft, and refused to let him pull out even a little.
Emily's eyes fluttered open. She thought she was still dreaming at first, and it was a beautiful, wonderful dream. Her sexy, naked little brother was in front of her, his cock practically shoved down her throat. Then she remembered everything that had happened the day before, and she realized this was no fantasy; this was real life.
"Morning, Em," Jaime said.
She met his gaze and smiled as best she could with her mouth full. Saying anything would have meant spitting his cock out, and she couldn't bear to do that. Instead, she propped herself up a little and started bobbing her head back and forth along his shaft. Her hand went to her pussy and she fingered herself vigorously as she gave her brother his first blowjob.
The sounds of slurping, sucking, and schlicking filled the room for several minutes. Jaime watched his sister's throat bulge slightly every time she took him right to the hilt. Her eyes, her beautiful azure eyes, remained locked on his practically the whole time.
"I want to cum down your throat, Em," Jaime said.
Emily liked the sound of that. She threw herself into the task of making her brother cum with even wilder abandon than before. She rubbed her clit so fast she threatened to start a fire from sheer friction. She wanted her reward; she wanted it so badly.
Jaime grabbed his sister's head and held it against his stomach. He came inside her mouth with the volume of a fire hose. She couldn't swallow fast enough to keep up with the load, but luckily it was coming with such power that it forced its way past her throat muscles straight into her tummy. Not a single drop was spilled.
