Nate hopped off the couch and stretched languidly. "I'm gonna grab a shower before the fireworks start. You coming?"

His sister, Jenna, scoffed. "In your dreams, perv." But she couldn't hold back a smirk as Nate sauntered out of the room.

The siblings hadn't showered before, but it wouldn't have been the first time they'd have been in an intimate situation. Their relationship had shifted dramatically during a long weekend, when their parents had left them alone to go on vacation. What had started as an innocent night had quickly turned into something neither of them had expected—but neither regretted.

Jenna listened to the water running in the bathroom while mindlessly scrolling on her phone. The side door opened, and her father entered. It had been a good call not to climb in the shower, but she still wished she had.

"It's gonna be dark soon," her father said.

"Yeah, I'll be ready," Jenna said while her finger continued to swipe.

It was a yearly tradition for the family to go to the beach and watch fireworks. There were usually a lot of people there, some sitting in the sand, while others were in the nearby picnic area.

The beach would be crowded, but there were always some secluded spots where they could retreat to. She and Nate had become experts at hiding their private moments from others.

Her father disappeared into the kitchen, and she heard the shower shut off. Two minutes passed before Nate emerged, a towel wrapped low around his hips. There were a few stray droplets of water that still clung to his chest.

"All yours if you want it," he said, voice low enough that their father couldn't hear. He winked and unwrapped the towel, giving her an eyeful of his cock.

Jenna couldn't keep the naughty smirk off her face. "We have to get ready."

"I am ready," Nate insisted, giving his semi-hard cock a suggestive stroke before rewrapping the towel. "But I'll save it for later."

"You better," she murmured, rising from the couch.

In her room, Jenna selected a loose sundress that would allow easy access if they found a moment alone. Underneath, she wore nothing. She had to hope that the wind wouldn't whisk the hem up and show off her lack of panties.

They left like it was still light out, to find decent parking and a spot on the beach. Their mother had packed a pop-up beach tent to relax in. It was small, but it offered some privacy—something Jenna had already considered might come in handy.

The beach was already filling up when they arrived. People with coolers and blankets claimed their own section on the sand, while groups gathered in rowdy clusters near the water.

"How about over there?" their father suggested, pointing to a relatively empty patch of sand. It wasn’t far from the picnic area and would provide an excellent view of the fireworks.

"Perfect," Nate said, a little too enthusiastically. Jenna caught his eye and knew exactly what he was thinking.

Nate and their father began setting up the tent while Jenna arranged the beach chairs. Their mom spread out a large blanket, with a portion of it inside the tent and the rest extending out.

As the sun descended, it cast a pretty sheen on the water. The siblings lounged in the tent while their parents occupied the two chairs. They had to wait for the perfect opportunity. There weren't many people in front of the tent, and no one could see in from any other side.

The fireworks began. The first was a burst of red, followed by a shot of blue. Oohs and ahhs flared up from the crowded beach. All eyes were on the sky.

As the display continued, Nate gradually shifted closer to his sister. His hand inched the dress up, caressing her thigh. Jenna was excited for him to discover the absence of panties. She glanced toward their parents. Both were utterly absorbed in the show, their faces tilted skyward.

"You're so bad," she said.

Nate's fingers found bare skin where he expected fabric, and the deafening crack of a single firework masked Jenna's little gasp. His fingers ushered forward, finding her folds nice and slick.

"I'm so bad? Says the girl with no panties," he muttered into her ear.

Jenna bit her lip as his middle finger slipped inside her. "I thought you might appreciate easy access."

"Oh, I certainly do."

He grabbed her hand where it lay limply at her side and shoved it down the front of his basketball shorts. Jenna's fingers wrapped around his already hard cock and began slowly stroking it.

"God, I've been thinking about this all day." His hot breath against her ear made her tingle while his finger continued to work inside her.

Jenna's wrist moved in careful, measured movements. "Me too," she admitted.

A gigantic explosion of gold and red illuminated the beach. Their parents sat just feet away, completely oblivious to what was happening. The thrill of getting caught certainly heightened the experience.

"Turn over."

Jenna shifted her position, reluctantly removing her hand from his shaft. She moved onto her side and at once felt his bulge pressing against her ass. She kept her attention on her parents, who were still unobservant. It would be difficult to explain anything they were doing, as it wasn't discreet enough, but they could try to move if needed.

Nate shoved his shorts down just enough to release his cock. Jenna's heart raced as she felt his hardness slide between her thighs. The fireworks continued their thunderous display above as his cockhead nudged between her wet folds.

Jenna's desperate "Fuck me" was barely audible to Nate, but he was happy to oblige. In one swift motion, Nate pushed every inch inside his sister's pussy. Jenna's eyes rolled back as she felt him stretch her. Her mouth fell open in a silent moan. She gripped the blanket beneath them as another burst of fireworks exploded overhead.

"Fuck, you're so tight," Nate breathed against her neck. His hips began a careful rhythm. He kept each thrust deliberate and controlled, always mindful of their precarious position.

Their mother shifted in her chair, but Nate didn't stop thrusting. They couldn't hear, but she commented to their father before gesturing at the sky.

Nate's hand found her breast through the delicate fabric of her dress and his thumb circled her nipple. The more he played with her nipple, the more horny she became. Jenna began rocking back, meeting his thrusts. They were so close to getting caught, but it only made the experience hotter.

"You like that? You like being fucked in front of Mom and Dad?"

"Uh-huh," was all she could manage. Her orgasm was quickly building. The sensation of Nate's fat cock sliding deep inside her with each thrust, combined with the taboo thrill of their parents sitting mere feet away, pushed Jenna rapidly toward the edge. Her hand moved to her aching clit.

Beads of sweat moved down Nate's temples. Jenna was beginning to get sweaty as well. The air was still humid, even at night, and the harsh movements didn't help.

Nate's hand drifted to her other tit, squeezing her nipple gently.

"I'm so close," Jenna mumbled, her fingers working frantically at her clit.

"That's it, sis," Nate whispered, his pace quickening slightly. "Fuck, I can feel you squeezing me. Cum on my cock."

A barge of fireworks masked Jenna's moans of pleasure. Jenna's whole body tensed, her pussy squeezing her brother's pumping prick. Waves of ecstasy washed over her as her orgasm reached every nerve ending.

"Fuck, Jen.” He lasted a few more strokes before succumbing to her sweet cunt. Nate's body stiffened as he buried himself deep, his dick pulsing as he emptied his balls.

He didn't pull out right away, which was common for him. Jenna could feel his cock softening inside her.

"That was amazing," Nate sighed, slowly pulling out.

He tucked himself back into his shorts, and Jenna readjusted her dress. She had no panties to catch the jizz that would soon be dripping free. She crawled out of the tent to get cleaned up.

"I'll be right back," she said to her parents.

"Don't miss the finale!" her mother called after her.

Jenna made her way toward the public restrooms, feeling Nate's warm cum beginning to trickle down her inner thigh. The sensation was both dirty and thrilling.

The bathroom was shockingly empty. In a stall, she dried her skin of the evidence of their taboo encounter.

When Jenna returned, the finale was beginning. The sky was a kaleidoscope of colors—reds, blues, golds, and silvers.

"Just in time," her father said as she settled back into the tent beside Nate.

Her brother leaned over, his lips planting a kiss on her cheek. "Perfect timing. I was getting lonely."

Jenna playfully nudged him with her elbow. "We just did it. You can't behave yourself for a minute, can you?"

"Around you? Never."

Sibling Sodomy

Two Brother/Sister Anal Stories.

How I Became My Brother's Personal Buttslut

Anh gets caught by her brother and takes it in the ass.

More stories about sisters enjoying being fucked by their brothers.

You may also enjoy...