Rikku sat back on the sands, sweat dripping from her brow as she rested in the shade. Yuna had finally come to visit, and though she had taken to the desert quickly - she was having some trouble adjusting to what it did to her.

The sun made her hot and the sand left her bothered, so when it came time for a break it was all Yuna could do to resist melting against her cousin’s soft tan body.

Rikku was far more used to heat and sand, it would take more than a bit of sweat and glistening bodies to get her going. Even if Yuna had taken to wearing a tiny white bikini - so tight over their large tits, barely able to cover their fat booty. The tight skimpy outfit leaving her cousin with under-boob and under-butt. It was the largest Rikku could have offered, but neither of them were complaining. Yuna’s tits and ass nearly too big for the tiny white straps to contain.

Rikku stirred, her groin aching as her cousin huffed from exhaustion, their tits bouncing and jiggling, ass shaking, everything glistening from sweat and the waters of the oasis. Their skin reddened by the sun, and a little tinge of a blush.

Yuna eyed her cousin, dressed only in their equally skimpy yellow bikini - still a little damp from working underwater. The way Rikku filled it, not just their tits squeezed in tight, but the bulge slowly growing between their legs.

Yuna fell to her knees in the sand, her hands against her cousin’s thighs. Yuna’s fingers quickly moved up Rikku’s bikini bottoms, hooking under the waist and easing them gently down.

“Yunie…”

Yuna looked up at Rikku, their green spiral eyes meeting hers in a dreamy gaze. She smiled, then looked back down at the half limp cock revealed to her. It rested heavily against Rikku’s swollen balls, still full because Yuna had been negligent in her duties.

Yuna wrapped a hand around Rikku’s cock, the soft meat filling her hand, squashing between her fingers. Their foreskin slowly rolled back over their fat head, Rikku’s shaft growing harder in her tight grasp. She eased down her cousin’s length, firmly squeezing, leaning in to lick the tip. Pre-cum oozed out and Yuna lovingly polished it away, her tongue circling Rikku’s head, their spit shining Rikku’s knob. She bobbed down, but let her cousin grow into her mouth until she was full.

Then, with one steady motion she pushed herself down against them, working her cousin’s shaft down her throat. One small gag and she swallowed hard, drawing Rikku all the way in and holding them there as she savoured the feel of her throat packed with cock. Rikku was rock hard, they tasted of sweat and salt, pleasantly bulging her neck as their tip tickled against the very back of her throat.

She resurfaced with a gasp, her lungs burning and her eyes watering but her body hungry and aching for more. She desperately wanted her cousin inside her, filling her, hard and deep. She was sticky, soaking wet through her bikini bottoms at the thought of it, at the way their tip tickled her throat.

Unfortunately it was a bad time of the month, she had to settle. Seeing that monster rising up before her eyes, she knew she couldn’t handle it in her ass but, maybe today was the day she tried. Hand still firm around her cousin’s cock, Yuna reached behind her back, fingers easily unknotting the carefully tied strings. Her top fell away, unleashing her tits. She jiggled, large pillowy mounds free for her cousin to admire.

Yuna leaned in, ready to embrace Rikku with her chest, but instead found her cousin pushing her down into the sand. Lust in their eyes, their tiny body pressing down against her stomach and their heavy cock and balls slapping against her chest. They cupped her tits, squeezing them together around their shaft, their tip peeking out her cleavage.

Rikku slipped forward up her body, their cock stroking between her silky breasts. Her soft flesh enveloping them, brushing along their entire length. Rikku thrust slow and steady, pre-cum dribbling out, her tits getting slick and her cousin’s strokes getting softer. Her cousin grunted against her chest, heavy balls brushing up her stomach. Yuna watched them mount her chest, sand sticking to her sweaty body, their pre-cum covering her breasts.

Yuna opened her mouth, hoping to get another taste but her cousin eased their strokes against her, groaning and gritting their teeth. Rikku’s cock trembled against her tits, their entire body tensing as a massive load erupted over Yuna’s face. Plastered, covered in her cousin’s spunk, her mouth filling up as more and more thick ropes spurted forth over her lips. Rikku slid forward, burying their cock in her mouth, hot sticky cum flooding down Yuna’s throat. She swallowed greedily and savoured the feel of her cousin’s heat swelling inside her body as her belly grew.

When Rikku finally ran dry, it was no surprise that their swollen balls had barely lightened. Pressed against her face, her cousin’s sack weighed heavily against her, intoxicatingly sweaty and hot.

“Ah, Yunie… I need more than that.”

Yuna was sticky, glazed over in spunk and with a full stomach but she was just as thirsty. The desert did that to her.

Rikku shifted back, sliding their wet limp cock along her entire body leaving a slick trail in her wake. They parted Yuna’s legs,  one hand rubbing along their wet member as they knelt between their cousin’s legs.

Yuna reached down to help them, but Rikku brushed away her hand, then grabbed hold of her hips and turned her, forcefully twisting her onto her stomach and pulling her into position. Rikku returned to stroking herself, and with their free hand tugged at Yuna’s bikini bottom. They pulled the bottoms to the side, revealing the sticky, wet pink pussy and the clenching pucker to their stiffening cock.

Rikku pressed herself down against Yuna’s ass, cock between her thighs and hands gripped firmly on her hips. Their knees in the sand outside her legs, pushing them together tight around their cock. Their shaft brushed against her pussy lips, eliciting a soft moan from Yuna.

“Rikku… wait.”

Rikku paused, their hands cupped around Yuna’s ass - squeezing her cheeks, fingers embracing that fat booty.

“Not my pussy, not protected.”

Rikku grinned, “Don’t worry Yunie, I’ll pull out.”

Yuna sighed as her cousin teased their cock against her folds, parting her with their thick shaft and a thumb rubbing up against her anus.

“It’s not safe.”

Rikku edged in a little harder, “I’ll pull out.”

“No,” Yuna groaned as Rikku ground in even harder, their shaft now cocooned in her pussy, “Fuck my ass.”

Rikku had always wanted their cousin to say that, but now all they wanted was that sopping pussy around their cock, milking their heavy balls dry. Yuna’s ass wasn’t even appealing, “Come on Yunie, it’ll be good - I’ll pull out, I promise.”

Every rub, every poke, every tickle of her cousin’s member against her wore away her will. She was so wet, so hot, her body was on fire and bristling with excitement - a horrible bundle of nerves that just wanted relief.

“Ahh,” Rikku’s thumb pushed inside her and she shattered, “A-alright, alright.”

Rikku eagerly leapt at the offer, leant back, their free hand pulling their cock up to guide herself in into their cousin’s folds. Yuna’s slick, silken lips parted around them, enguling their entire cock-head, their tip disappearing deep inside her cunt. She swallowed them, right down to the hilt, engulfing them in the hot velvet of forbidden pussy. She was burning up around their shaft, heat that stained its way into Rikku’s mind.

Yuna sighed deeply as her cousin penetrated her, their thick cock spreading and stretching her tight slit. Rikku’s swollen balls tickled up against her clit, easing into a hard slap as her cousin ground harder against her. Every thrust sent shivers through her body, ecstasy building up and nerves bundling up in her chest. The heat of the desert mingled with her cousin and her cunt’s, their thrusts getting harder and faster until Rikku pressed her down hard into the sand. Her sweetest spots ringing as Rikku’s hard cock rammed against her walls, shoving her face first into the ground. They mounted her fat ass, plowing her harder and harder, the entire weight of the tiny Al Bhed’s body on top of her, hands against her shoulder-blades.

Yuna’s legs wrapped up, heels digging into Rikku’s ass, curling around their legs to keep them against her.

Just a little deeper, just a little harder and she’s get there, just a little deeper. Then Rikku groaned loudly over their cousin’s screams of ecstasy. Cock trembling inside her, Yuna tightened against them, holding her cousin inside her. Neither of them fought the pleasure overwhelming them.

“Oh, Yunie… uh, whoopsie!”

Rikku slowed, their hands loosening against her back. Their balls tightening as load after load pumped deep inside her, bursting out and flooding her fertile womb with thick, creamy seed.

“Ahhh! Keep going!”

Yuna squeezed harder against her cousin, her face rising from the sands to cry, “Don’t stop!”

Rikku started up again, their half-hard dick pushing the hot spunk deeper. Yuna only realised what was happening once it started to squirt from her pussy, dribbling out of her and down onto the desert sands. She quaked with delight, her mind lost to the feel of hot jizz flooding her depths, oozing out of her, of the sand sticking to her glazed face and her cousin still ramming her. Rikku held her down as the last of their load pumped out of them, Yuna let them go but it was too late, her creamy pie oozing with her cousin’s cum. Stretched, gaping and overflowing with incestuous seed, Yuna sighed.

“How long until you can go again?”

Rikku’s limp cock, still inside her, nearly turned to steel. They were so happy Yuna had come to visit, but how they’d explain Yuna’s child to their family was going to be hard.

“Let’s try for twins…” Yuna moaned.