Putting her feet on the bottom, Marilyn slid her hand down Ralph's front and grabbed his upright cock tightly. It throbbed under her slender fingers, hardening even more with a twitching jerk.
"Put your dick in me," she said quietly, pressing her body to his warmly. "I want to feel your stiff cock in my pussy."
"I'll hold you up," the slender redhead volunteered, moving behind the young girl. With her back against the smooth edge of the pool, Vivian put her arms around Marilyn's middle and pulled the nude girl into her tits and belly. "Rest your head on my shoulder, dear."
Moving in close, Ralph took Marilyn's bare thighs in his hands and raised her leg. When her hips and ass floated upward in the water, he stepped in still closer and spread her knees.
"This is going to be fun!" she gushed. The upper part of her back against Vivian's bare tits, she laid her pretty head on the woman's shoulder. Then when she felt Ralph's hands slide up the backs of her thighs to cup and support the round cheeks of her ass, she urged him, "Hurry and shave your prick up me!"
Wedging his hips between her parted thighs, Ralph easily found the slick opening of Marilyn's pink snatch with the tip of his standing cock.
"Uhhh! That's it!" She trembled whoa she felt his huge prick pushing up into her wetly-gripping cunt. "Ohhh, your dick's so big and stiff! Shove it deeper!"
Standing with his feet wide on the bottom of the pool, Ralph pushed his throbbing cock into Marilyn's snatch until his hairy crotch was pressed tight to hers. He held her up with both hands under her ass, then started pistoning his big prick into her juicy cunt.
Held up between the two of them, Marilyn's naked body soon stiffened with wildly-delicious pleasure. Pushing her shoulders back into Vivian's chest, she tightened her quivering thighs around Ralph's hips. Every stabbing stroke of his thick cock up her wet pussy made her gasp, her bare tits rising and falling rapidly.
"Don't let me drown!" Marilyn groaned to Vivian, the water line just below her pink nipples. "You might not be able to hold onto me when I start coming!"
Sliding her hands up Marilyn's front and cupping her tits from behind, the lithe redhead said, "I won't let you go. Kick and squirm as much as you want to!"
Which was exactly what Marilyn had already begun to do. With her knees bent outward and her heels dug into the sides of Ralph's ass, she pumped her hips erratically. The water beginning to churn around her, the slender girl wiggled in every direction as Ralph's long cock slid in and out of her tight cunt.
"Fuck me faster!" Marilyn gasped brokenly, her face dotted with beads of sweat and her hair hanging down into the water. "Ram your stiff dick up my snatch as hard as possible! Ohhhhh! Your cock's so big and hard and stiff! Push it deeper! Deeper!"
His big hands squeezing Marilyn's ass into knots of rubbery flesh, he drove his huge cock into the tightest depths of Marilyn's pulsating snatch. The water bubbled and foamed around him as his hips whipped back and forth, the ripples it caused washing up almost to the wriggling girl's chin.
Squirming, Marilyn groaned, "Give me every inch of your solid prick! Make me come with your throbbing cock! Faster, fuck me faster! Uhhhh! It's going so deep! I can feel your dick going so deep in my cunt!"
Vivian's arms tightened around her chest as the sexy woman fondled Marilyn's tits. She plucked at the younger girl's pointy nipples, rolling them eagerly between her fingertips.
"Doesn't Ralph give a great fuck?" the naked redhead asked, her own breath coming almost as fast as Marilyn's. "Doesn't his huge cock feel good going up your snatch!"
Her bare ass wriggling underwater, Marilyn managed to pant, "God, yes! My pussy keeps sucking at his prick! Ohhhhh! It just keeps stabbing up my cunt harder and harder! God, his cock feels so good!"
The groaning, panting blonde pumped her hips urgently, her slippery cunt working up and down against the pistoning action of Ralph's twitching cock and taking it as deep as possible.
"You've got a pussy tighter than a teenager's!" the big man gasped. "It just doesn't want to let go of my cock! Damn, and it's so slippery! It keeps clenching around my prick!"
Quaking with excitement, Vivian called out throatily, "Finger fuck her asshole, Ralph! Make her really squirm!"
"Do it!" she groaned. "Stick your fingers up my butt! Finger fuck my asshole!"
Ramming his long cook still more furiously up the girl's tight cunt, Ralph pulled the cheeks of her frantically wiggling ass apart until her rubbery asshole was stretched tight. Quickly, he jammed two fingers into her pulsing rectum and pushed them as deep as they would reach.
Marilyn went wild, her arms flailing at the water and sending it splashing everywhere. She bucked mindlessly, her heels digging into the large man's ass as she tried to pull him closer with her legs. Her fingers and her pussy asshole filled with his engorged with his cock, Marilyn wigged so frenziedly that Vivian almost lost her grip on her.
"Make me come!" the shuddering young salesgirl moaned. "I'm so close! Fuck me till I come! Fuck me! Fuck me hard! Ohhhh! Ohhh! Cram your cock up me faster! Keep slamming it up my pussy till I come!"
Hooking her arms wider Marilyn's armpits, Vivian struggled to keep the girl's head above water.
Marilyn's thighs strained with every jerky thrust of her hips, her bare ass churning in a tight little circle. Her hard nipples kept disappearing and then reappearing at the water line, her whole body lurching and twisting feverishly.
"Don't let go of her!" Ralph gasped to his wife. "Hold her really tight when she starts coming."
Gulping air, he hammered his throbbing cock into Marilyn's slick pussy with a frenzy of lust. Deeper and deeper he pushed his big prick, plunging it into her snatch with brutal thrusts that made her squirm all the wilder.
"I'm almost there!" Marilyn cried out, spreading her trembling thighs as wide as she could. She repeatedly ground her hairy crotch down into Ralph's, impaling her juice-oozing cunt on his stiffened prick and shuddering with the feel of it. "Uhhhhh! You're killing me with your dick! Ohhhhhh! I'm going to come right now!"
Twisting her naked hips back and forth frantically, Marilyn threw water flying. Her wet pussy clenched shut around the pulsing shaft of Ralph's cock, her slick asshole grabbing at his probing fingers.
"Ohhhhhh God!" she wailed with the overwhelming impact of her wriggling climax. "Shove your dick up me harder! Fuck me harder! Uhhhh! I'm being swept away! My cunt's quivering all over! Ohhhhh God!"
The slippery suction of her cunt enclosed Ralph's jerking prick. The man gasped loudly and then began to shoot his sticky sperm up into her.
"Hang onto me, Vivian!" Marilyn whimpered, shivering as Ralph's cock emptied its wet load into her hot snatch. "I'm coming like anything! Ohhh! It's better than ever! Uhhhhh!"
Even after taking all of the large man's spurting cum deep in her tight cunt, Marilyn kept wiggling feverishly. Crying out with the passion of her loins, she kept grinding her snatch down onto Ralph's cock as quickly as she could pump her bare ass.
"Just keep your prick in me a little longer!" she groaned to him, the water churning and foaming even more violently than before. "Ohhhhh! I love having your big hairy cock in my snatch! I'm coming my ass off! Uhhhh! It feels so fantastic! Ohhhhhh!"
When Marilyn at last sagged back into Vivian's arms with a sobbing moan, Ralph took a step back and pulled his cock out of her still-quivering cunt.
"It was beautiful!" she gasped, her bare legs sliding down from around the man's hips. Putting her feet on the bottom of the pool, she snuggled back into Vivian's arms and laid her head on the sexy redhead's naked shoulder. "Ummmmm! It was really perfect!"
"You seemed to enjoy it," Vivian said with a smile.