Cover of Cruise Ship Couple's Cruise with Sister

Cruise Ship Couple's Cruise with Sister

Read the story

15 chapters · 36673 words · Read 0 times

Kate's boyfriend breaks up with her right before they go on a cruise. She has 2 tickets for a 7 day couple's Christmas cruise. She can't refund the tickets so she tries to invite a bunch of different guys she knows. They all turn her down because the cruise it just too long. Her parents remind her that her brother might be available. Kate is not sexually attracted to her brother at all. The idea of bringing him on a couple's cruise seems weird, but she offers him anyway because the tickets will go to waste otherwise. He reluctantly accepts. They go on the cruise and by day 10 they are having sex. They slowly get used to each other as the days pass and realize they are sexually attracted to each other. Day 1 they just watch the other. Day 2 morning wood. Day 3 mutual masturbation on Christmas eve. Day 4 oral sex Christmas gift in morning. meet other couple and kissing in evening. day 5 they meet other couple again and swap partners to have sex, but they only watch each other. Day 6 they have oral sex, try and resist having sex. day 7 they have sex.

Chapter 9: The Suite Swap

Josh woke to a warmth that was all wrong. The sterile, air-conditioned chill of the cabin was gone, replaced by a solid heat along his back and the soft weight of an arm thrown across his ribs. Blonde hair tickled his nose. He was spooning Kate, his body curled instinctively around hers, one hand splayed on the flat plane of her stomach under her t-shirt.

And he was painfully, unequivocally hard, pressed against the back of her thin sleep shorts.

He froze, panic shooting through the groggy haze of last night’s drinks. The pillow wall was a sad, flattened heap near the foot of the bed. They’d forgotten it.

Before he could carefully extract himself, Kate stirred. She stretched, a slow, feline movement that pressed her backside more firmly against him. She went still. Totally still. He felt her awareness click into place, a tense ripple through her muscles.

“Oh,” she said, her voice morning-rough.

“Yeah.”

“Um.”

“The wall fell.”

“It definitely fell.”

Neither moved for a long, horrible second. The reality of their situation—the club, the agreement, the entire mad premise of their trip—crashed into the intimate, sleepy confusion of the bed. This was the problem they were trying to solve. This exact, awkward, biological problem.

Josh finally rolled onto his back, putting space between them. The cool air of the cabin was a relief. He stared at the ceiling. “Morning. Sorry.”

Kate sat up, pulling the sheet with her. She didn’t look at him, her cheeks flushed. “It’s fine. It’s a… thing. That happens. No big deal.” Her tone was deliberately casual, but it was strained. “We should probably talk about last night. Sober.”

“Right.”

They ordered room service coffee and sat on the balcony in the blinding morning sun, the vast, empty ocean stretching to infinity. The clarity of day made the Neon Nightclub feel like a surreal dream.

“So we’re really doing this,” Kate said, wrapping her hands around her mug. “The… thing. With them.”

“We said we would.”

“I know. And I meant it. I think.” She bit her lip. “It still feels like we’re trying to put out a fire with a flamethrower.”

“Maybe the fire needs to be burned out completely,” Josh said, echoing her logic from the night before, though it sounded flimsier now. “What are the rules?”

She took a deep breath, slipping into a practical mode. “Okay. Rule one: we stay in the same room. No splitting up. Rule two: we can say ‘stop’ at any time, for any reason, and we leave. No questions. Rule three: no… trading. It’s parallel play. You with her, me with him. Not… crossover.”

“Agreed.” The parameters made it feel less like infidelity and more like a bizarre, mutual clinical trial. “And we don’t have to do anything we don’t want to. At all.”

“Obviously.” She sipped her coffee, then smirked, a shadow of her usual self returning. “Though I have to admit, Javier is kind of ridiculously hot. In a dad-on-a-reality-TV-show kind of way.”

Josh snorted. “Maria is terrifying. And smart.”

“You like that.”

He didn’t deny it. “What’s the exit strategy? If it gets weird?”

“We say the safe word.”

“pickle” Kate says with a giggle

A laugh escaped him, breaking the last of the morning’s tension. “pickle. Okay.”

The pool deck was a riot of sunbaked flesh, blaring reggae, and the shrieks of kids cannonballing into the water. They found Maria and Javier in a secluded cabana, already ensconced on plush loungers. A bottle of champagne sat in a sweating ice bucket beside them.

Maria looked up, her sunglasses sliding down her nose. “The adventurers arrive. We were beginning to think you’d jumped ship.”

“Just recovering,” Kate said, slipping onto a lounger next to Javier. Josh took the one beside Maria.

The atmosphere was different from dinner or the club. The daylight was merciless, exposing every glance, every micro-expression. But there was also a directness that was easier. The cards were on the table.

Javier poured champagne into four flutes. “To new friends,” he said, raising his glass. “And to clear, sober intentions.”

They clinked. The champagne was crisp and dry.

For a while, they made small talk—the shows they’d seen, the terrible buffet pizza, the port they’d visit tomorrow. It was normal. Too normal. The subtext hummed beneath every sentence.

Maria finally set her glass down. “So. You’ve talked. You’re here. That means you have questions. Or conditions.”

Kate glanced at Josh. He gave a slight nod. “We have conditions,” she said, her voice steady. “We stay together in the same room. Either of us can say stop, and it’s over, no debate. And we… keep to our pairs.”

Javier’s smile was approving. “Smart. Clear boundaries are essential. And we agree. Your comfort and connection come first. This is about adding to your experience, not fracturing it.” He leaned back. “We’re not monsters. We’re facilitators of fun.”

“And what’s fun for you?” Josh asked, looking at Maria.

Her eyes, behind the sunglasses, seemed to fix on him. “Curiosity. The energy of discovery. Seeing people explore edges they usually avoid. It’s… intoxicating.” She reached over and traced a fingernail lightly down his forearm. A simple, deliberate touch. “You have a very thoughtful energy, Josh. It’s interesting to watch you decide to let go.”

A shiver that had nothing to do with the sun traveled up his spine.

Javier’s hand found Kate’s knee, a warm, heavy weight. “And you, Kate. You have this bright, vibrant light. It’s a pleasure just to be near it.”

Kate’s breath hitched, just slightly. She didn’t pull away.

The conversation drifted again, but the touches remained—a hand on a shoulder, a foot brushing against a leg under the table. It was a slow, deliberate dialing-up of intimacy, conducted in plain sight amidst the chaotic family-friendly pool scene. The dissonance was thrilling.

“The hot tubs are quieter,” Javier suggested, his thumb making slow circles on Kate’s knee. “More private.”

They moved as a group to a bank of circular tubs set slightly apart from the main pool, steam curling into the afternoon air. They had one to themselves. The water was a shock of intense heat. Kate and Josh slid in opposite each other, Maria and Javier flanking them.

The close quarters changed everything. Under the churning, bubbling water, boundaries dissolved. Maria’s leg pressed against Josh’s from hip to calf. Javier’s arm settled along the rim behind Kate, his fingers playing with the damp ends of her hair.

“This is nice,” Maria sighed, leaning her head back. Her body shifted, and her hand came to rest on Josh’s thigh under the water. Not moving, just present. A claim.

“It is,” Kate said. Her eyes were wide, the pupils dilated. Javier was whispering something in her ear, and a slow, genuine smile spread across her face, one Josh hadn’t seen in days. She laughed, a light, carefree sound, and let her head loll back onto Javier’s shoulder.

Josh watched her. She looked… released. The constant, brittle anxiety that had clung to her since the breakup, since the spa, was gone. In its place was a fluid, receptive calm. Javier said something else, and she turned her face toward him, their noses almost touching, sharing a smile that was blatantly, exclusively sexual.

A spike of something sharp and green shot through Josh. It wasn’t jealousy, not exactly. It was a startling sense of being left behind. He was observing her pleasure from the outside.

As if sensing his shift, Maria’s hand on his thigh moved, just an inch inward. Her fingertips brushed higher. His body responded instantly, a jolt of pure physical feedback that drowned out the complicated emotion. He turned to look at her.

She had removed her sunglasses. Her eyes were dark and knowing. “You’re thinking too much,” she murmured, her voice barely audible over the churn of the jets. “Don’t watch them. Be here with me.”

She leaned in, her lips close to his ear. Her other hand came up out of the water, dripping, and traced the line of his jaw. “I want to feel what that careful mind of yours is like when it finally switches off. I want to see what’s underneath all that concern.”

Her words were a direct hit. They bypassed pretense and went straight to the core of the deal. This was the trade. His vigilance for her experience. His control for her command.

Under the water, her hand moved again, a firm, deliberate stroke over the growing evidence of his arousal. He inhaled sharply, his hands gripping the edge of the tub. He didn’t stop her. He looked across the bubbles at Kate.

Javier’s hand was now on Kate’s waist, under her bikini top, his mouth busy at the juncture of her neck and shoulder. Her eyes were closed, her lips parted. She was lost in it. She was playing her part.

So Josh closed his eyes. He let his head fall back against the rim. He focused on the scorching heat of the water, the prickle of the jets, and the exquisite, guilty pressure of Maria’s expert hand. The world narrowed to sensation. The thinking, for a few precious minutes, stopped.




The thinking, for a few precious minutes, stopped. It was replaced by a raw, singular focus on the rhythm of her wrist beneath the churning surface. Maria’s touch was neither tentative nor rushed. It was a study in applied pressure and deliberate friction, her experienced hands knowing exactly how to build the tension coiled in his gut. Each stroke was a promise, each shift of her thumb a question he answered with a sharp, silent breath.

He stole a glance across the foam. Kate’s head was tilted back against Javier’s broad shoulder, her mouth open in a soft, soundless ‘O’. Her eyes were shut tight, lashes dark against her flushed skin. Javier’s large hand was a distinct movement under the water, hidden by the riot of bubbles, and the rhythmic clench of Kate’s jaw told Josh everything. She was right there with him, riding the same illicit wave.

The realization, instead of shaming him, sent a final, destabilizing bolt of heat through his core. His hand found Maria’s knee under the water and gripped it, an anchor as the world dissolved into white-hot release. The sound he made was a choked gasp, lost in the mechanical gurgle of the jets. He kept his eyes squeezed shut, his forehead pressed to the cool tile rim as the pulses gradually subsided.

Maria’s hand gentled, then stilled. She leaned into him, her lips brushing the shell of his ear. Her whisper was a warm, damp secret. “That was just a preview, you know.” Her teeth grazed his earlobe. “Tonight, I’m not going to use my hands. I want to taste you. I want to see how long I can make you beg before I let you come again.”

Her words painted a vivid, shocking picture in his spent, buzzing mind. He could only nod, a dumb, jerky motion.

Across the tub, Kate’s eyes fluttered open. They met Josh’s. Her expression was dazed, glazed with a pleasure that was both foreign and intimately recognizable. A faint, almost imperceptible tremor went through her. Javier was whispering to her, nuzzling her hair, and she offered Josh a weak, shell-shocked smile that didn’t reach her eyes.

“We should…” Josh managed, his voice hoarse. “We should probably go get ready.”

“For dinner,” Kate finished, her own words a little too high, a little too bright. “Yeah. We said we’d meet for dinner.”

Extricating themselves from the water felt like moving through syrup. The cooler air of the deck was a shock, raising goosebumps on their overheated skin. They grabbed towels, wrapping themselves in thin, scratchy cotton that provided no real cover.

Maria and Javier remained in the tub, a tableau of satisfied ease. “The steakhouse at eight?” Javier called, his arm still draped around Kate’s vacated spot.

“Eight,” Josh confirmed, not looking back.

They walked in silence through the labyrinth of deck chairs, the roar of the pool fading behind them. The elevator was empty. The doors slid shut with a soft ping, enclosing them in a sterile, mirrored box.

Kate stared straight ahead at their reflections. Her mascara was slightly smudged. “So.”

“So.”

“The, um. The parallel play. It works.”

“It works,” Josh echoed. He watched her reflection. “You okay?”

She finally looked at him, a wild, frantic laugh bubbling in her throat. “I have no idea. I feel like I just got hit by a very sexy, very confusing bus. Javier has… hands.” She shook her head, as if to clear it. “You?”

“Maria has a… very direct way of communicating.”

Kate’s grin was sudden and real. “I’ll bet.” The elevator dinged at their deck. The hallway was quiet, carpeted. As they neared their door, her shoulder bumped his. “Hey. ‘Pickle’ still stands, right?”

“Pickle absolutely stands,” he said, fumbling with the key card. The lock light flashed green. “But are we… do we want to say it?”

She stepped inside ahead of him, dropping her wet towel on the floor. She turned, her expression serious now, the earlier giddiness gone. “No,” she said, decisively. “I don’t think I do. Do you?”

He thought of Maria’s whisper, a promise hanging in the humid night air. He thought of the look on Kate’s face in the tub, a mixture of surrender and shock. This was the fire they’d chosen. “No,” he said. “I don’t.”

“Good.” She walked toward the bathroom, peeling off her bikini top as she went. “Then stop looking so freaked out. We wanted an adventure. We’re getting one. Now I need to shower for approximately three hours to try and feel normal again.”

The bathroom door clicked shut. Josh stood alone in the cabin, the only sound the distant thrum of the ship’s engines and the rush of water from the shower. He could still feel the phantom pressure of Maria’s grip. He could still see the dazed pleasure on his sister’s face. The room felt charged, the air itself waiting for what came next.

Read on DreamPress

Write your own erotic story with AI