It's Party Time

The two sisters knelt next to each other on the carpet in front of their son/nephew respectively. The just knelt and stared at the sixteen-year-old erection that was standing up like a nuke ready for launch. Both women had their long, wet hair slicked back, and Dana wrapped her shaking fingers around her youngest son. "My fingers just barely touch, Sis!"

"I can see. Damn, Nephew, if I would have known your cock would have grown so big, I never would have stopped sucking you off when you were younger." Both women knew Jenny did it before, so neither said anything. Jenny added her hand above Shawn's mother's.

They stroked it together--in perfect harmonious unison--and Shawn was moaning grunts with each stroke. "Uhhh...uhhh...uhhh...uhhhhh..."
"Have you ever had your cock sucked before, Son?"
"Nuh...ohhhh...uh...no, Mom."
"Well, your about to get this wonderful pole smoked by two mouths."

Dana held the cock at the base on Shawn's left side, and Jenny put her hand over her sister's on the other. The cock jumped, and a rivulet of pre-cum swam down the veiny shaft.

"He's my son, so I go first, baby." Dana ran her tongue up the length, gathering all of the clear, viscous liquid. She swallowed it and kissed the reddish-purple head, lovingly smelling the sweet/sour aroma of her teenager.

Shawn just moaned, "Oh man, Mom, please don't stop..." He was breathing heavier, then he added, "Aunt Jenny, could you come up here and let me suck on those big tits of yours?"

"Sure, sweetheart. Suck 'em good, Nephew." She didn't release her grip on thr throbbong cock as she moved her breasts closer to his face.
He licked around the aereola, and nibbled on the stiff nipple of her left tit. He squeezed them both as his mother plunged the top half off his prick into her warm, wet throat.

"OOOOOOhhhhh, FUCK, Mom! Damn!" 

Shawn's mother was bobbing up and down and slurping, juicy sounds filled the room. Jenny removed her tit from Shawn's mouth, and joined her sister. She licked the flesh of the cock in front of her, then her sister offered it to her. Jenny was better at the art of Cock-Gobbling, though, so she deep-throated the whole nine and a half of penis.

Shawn's body was shaking convulsively and he had to hold back the urge to explode his jizz.
"Look at her go, Shawn!" his mother cooed. "Damn she could blow a cock! You want to lose you virginity to us now while we lick each other/"
Jenny slid the cock out of her throat, smiled, licked at the drool that was hanging from a corner of her mouth, and just stroked the dick softly.

Shawn just looked into his mother's loving eyes, and stated flatly "I'm not a virgin anymore, Mom. I lost it tonight." 
"Aw, Shawn," Dana said with a tinge of disappointment. "Who was the lucky girl, baby?"

"Uh, you were, Mom. I, uh, didn't know at the time, but I fucked you at Steve's frat party. You had those black stockings on that I love, and I saw her"--he nodded to Jenny--"next to you with her white ones on. Don't be mad at Steve; I snuck in.

'You were beautiful, Mom, and I'll remember it the rest of my life. But I still want to do it again. If you want?"
Dana opened her mouth, along with Jenny, in disbelief. "That was YOUR big, stiff cock that finally got me to gush, wasn't it?"

"Yeah, it was. I don't think you're a slut or anything, Mom, just so you know. I understand that mature women have needs, too. But, I just want you to know that you don't need them anymore. I'm all the young fucker you'll ever need.' Then he added, "You too, Jenny."

They both looked extremely pleased. Dana grabbed her sister's wrist and stood up. "We'll be right back, baby. Keep that cock hard."
"No problem there."

They returned two minutes later, wearing the stockings and strappy stilleto heels they had on earlier.

They walked over to the still-hard boy, and Dana said, "Since you already pounded me, fuck your aunt first while I lick her pussy and your cock. Ride 'im, Jenny."
Jenny's heels clicked as she turned around, grabbed the monster dick, and placed the engorged head between her thick lips. She moaned "Ohhhh..." as she slowly slid the large rod into her; it slithered in like a fat, slippery snake, stretching out the inner walls of her soaked pussy.

"You have no idea how hot that looks, Jenny, watching my sister getting impaled by my underage son. Fuck! Give me some cunt." Dana used her fingers to spread the hopping pussy apart. She licked all around the labia and sucked hard on the protruding clit.

"Oh, Sister-dear, eat that wet pussy. I love it when you chew and suck on my fat lips."
Then Shawn joined in the sex-talk. "Aunt Jenny, you're so fucking TIGHT! I could feel the head of my cock hitting something deep inside you. Uh...uh...uh...uh. What is that?"

"My cervix, darling Nephew, You're pounding me deeper than anyone has ever done. That's it, baby, plug me up."
Dana lubricated her finger by pushing it between her son's prick and her sister's snatch. 'Shit, she's tight. Espescially now.' Dana went in and out four times, then--in one quick thrust--she shoved it into her sister's asshole.

"EEEK!" Jenny shrieked. Then: "You...uh...ohhhhh! You know how much I love that, Sissy. Keep fingering my ass!"
Shawn gripped his aunt's hips, and started bouncing her up and down; her bare ass was making smacking sounds against his stomach.
Shawn felt his balls tighten, and he asked, "Mom, I'm gonna cuh-cum soon! Where should I--?"
"In our mouths, honey." She said, with a mouthful of of cuntlip. "You already filled my pussy up."

Shawn started stroking the smooth nylon of the white thigh-highs of his aunt. He pumped a couple of more times, then moaned, "I have to cum now, Aunt Jenny. Get ready for it."

Jenny lifted off of her nephew's cock, and immediately went down on her knees next to her sister. Shawn stood up, letting his prick go. Both his mother and his aunt fisted the shimmering dick. They stroked and beat it hard, their mouths opened, waiting for the teenage jizzum.

They didn't have to wait long. Shawn grunted, and streams, spurts, and lines of cum fired out like slugs from as .22 caliber handgun. The ropes flew into mouths, sprayed across tits and cheeks, doused hair, and struck eyes.

Both women fought over the cock, and their messy mouths dripped cum as they sucked and licked the stiff prick that fed them the most semen they've ever seen.
All three layed down on the bathroom floor, panting, the sister's swapping the young cum. They rubbed it around their slick bodies, even smearing handfuls of it into their hairless cunts.

"Mom, this was the greatest night of my life," Shawn breathed.

"Me too, baby, but I still haven't gotten MY pussy eaten yet! Jenny wants to be selfish. Now. You both get down there and suck my cunt until I squirt in both of your mouths."

The nephew/son and aunt grinned at each other and made their way to the puffy pussy that Shawn popped out of 18 years ago.

Dana pulled her legs back as far as they would go, and rolled back even farther, so her cunt pointed straight up. She peeled her puss apart, and both son and sister devoured her bald, juicy, meaty cunt.