"Great! No wonder the rest of the family's getting it on! Incest is really exciting, Matt! I mean, I've had my pussy eaten out before by my boyfriends but it's never felt this good!"
"Really?" Matt asked excitedly. "Then maybe when you make me come, it'll feel even better than when I jerked myself off with my hand!"
"That I can guarantee," Kris laughed. She looked down at her brother's hard cock and grew sober again. "I know you've never fucked Matt but haven't you ever had your prick touched or sucked by a girl?"
Matt blushed and shook his head, looking away from his big sister.
"Hey, it's okay, Matt," Kris said softly, reaching out and turning the boy's face back to hers. "It's nothing to be ashamed of. And like I said before, I think it's really neat that I'll be the first."
"Do you really mean that?" Matt asked, a relieved smile lighting his face.
"Yes, really!" Kris said firmly. "Now… it's time for me to make you come. I can jerk you off or suck you until you come down my throat, or we can fuck. The choice is yours. Which do you…"
"Let's fuck!" Matt cried, his cock jerking between his legs.
"Great! I was really hoping you'd say that," Kris laughed.
"But, what if I don't do it right?" Matt asked, suddenly worried.
"Oh, don't even think that way, Matt. One great thing about fucking is that it's so natural. It's like breathing or eating. You don't have to have a lot of experience in order to do it right. You just have to try to relax and let your feelings and needs guide you. Just shove your big cock into my pussy and let your instincts do the rest."
"Are you sure?" Matt asked, not wanting to make a fool of himself with his more experienced sister.
"Of course, I'm sure. After all, you'd never licked pussy before, and you sure did fine with mine!"
"Hey, yeah!" Matt cried.
"Now, come on, let's not waste any more time. Let's fuck!" Kris begged.
Matt knelt between his sister's legs and steered his broad, pulsing cockhead between her parted cuntlips.
"Aaarghhhh!" Kris cried as she felt his cock against her cunt.
Matt kept his cockhead firmly in position between Kris' wet pussylips as he sank down atop her. At once, Kris fastened her teeth on his neck.
"Ungh," Matt gasped, feeling little shivers of desire racing through him.
The girl's tongue flicked out at the boy's chest. He pushed forward more and his big prick expanded her pussy as it fucked deeper. He had several inches of his cockmeat fucked into her slick cunt now.
"Awww, Sis, I've gotta fuck you hard!" Matt cried as he began to fuck his hard prick into her.
Each stroke sent his cock fucking into her deeper. And each stroke brought a greater wave of pleasure from the clinging, wet cunt folds which churned about his pistoning prick. He pulled her closer to him, fucking her still harder.
"Ahhh, Matt, I love it! Your cock feels sooo big and hard inside meeeeeeee!" Kris wailed, thrilled to realize that hers was the very first pussy to receive Matt's deliciously hard cock.
Her brother's prick felt different to Kris than any other cock she had ever had inside her. She knew it was because he was her own brother, and she clutched him with both hands, pulling his cock still deeper inside her.
Her little ass rolled back and forth on the bed, humping feverishly, to meet the young boy's invading prick. She wriggled all over in joy and excitement.
Matt instinctively pulled his prick almost all the way out of his sister's pussy. Then he thrust forward again, groaning with pleasure as he fucked into the very depths of her pussy.
Matt groaned, feeling his sister's tight cunt muscles closing around his fucker. He had not expected that lewd caress and he shuddered violently, realizing he still had a lot to learn about fucking. But he was more than willing to learn, especially if his own family would be the ones to teach him.
Again and again, he fucked his entire prick in and out of Kris' tight pussy, savoring the heat and friction of her wriggling cunt flesh.
"Yes, Matt, you're doing great! Keep fucking me till we both come!" the girl panted.
She worked her hips up and down with wild bucking motions, sending hot lust-filled thrills through both of their nakedly rutting bodies.
"God, I never knew… it's sooo good!" Matt gasped, fucking in and out of his sister's pussy almost savagely.
At the same time, he dug his strong fingers painfully into her humping hips.
"Oh, Matt, I can't wait to feel your cum inside my pussy!" Kris groaned.
Matt hadn't even thought about the fact that he would soon be shooting his cum into his sister's cunt. He had been so intent on fucking her hard that he hadn't really been able to think of anything else. But now, his sister's words made him realize that he was about to experience the very ultimate pleasure in fucking. He could feel his cum churning in his balls, and he knew that he would not be able to hold back much longer.
Kris felt her tits aching with need and she slid her hands beneath them, sandwiching them together. She felt her nips rubbing lewdly against each other, and she moaned with excitement.
Matt looked down at her and saw her nipples throbbing hornily, and he knew just what she needed. He lowered his face and opened his mouth wide.
"Oh, God, yes, Matt!" Kris screeched when she felt her brother's lips encircling both of her nipples. She continued to squeeze her tit mounds together, and her nipples pulsated violently between Matt's lips.
Matt sucked hard on his sister's nipples, closing his eyes with pleasure. He was surprised by how long and stiff the two nips were, and he felt his cock growing stiffer inside Kris' cunt as he licked and sucked on the twin buds.
"Bite them!" Kris gasped, just as she had begged her brother to bite into her clit.
With a savage-sounding growl, Matt sank his teeth into Kris' sensitive nipples.
"Yeeeeoowww!" Kris cried as darts of pain and pleasure tore through her tits, intensifying the pleasure she felt in her cock-packed cunt.
"God, I can't stand it much longer! You're fucking me so good… so hard… I want you to come now, Matt! Shoot! Shoot all your cum deep inside meeeee!"
Her hips worked fast and furiously, grinding her pussy about the boy's fucking prick.
"Yeah, Sis!" Matt grunted.
He slammed into her, fucking the full length of his thick cock into her twitching pussy. The swing of his loaded balls slapped wetly against her upturned ass.
"God!" Kris groaned as her pussy accepted every single inch of her brother's pulsating prickmeat.
Her inner pussy muscles squeezed his cock with rapid convulsions. She knew that the young boy was about to come now. And she also knew that once she felt his thick cum gushing into her, she would come with him.
Matt was fucking his big sister violently now. His cock was drilling deeply into her, fucking into the spongy depths of her cunt with a retreat of only an inch or so, just enough to create that exciting friction of cunt and prick.
"Urghhhh," he grunted, his face going red and twisting into a lust-filled grimace.
"Oh, wow, Matt, you're gonna come! Do it! Shoot!" Kris begged as tears sprang to her eyes. She gazed up at her brother with a rapt expression, and her tear-filled eyes smoldered with passion as she waited to receive his spurting cum.
Suddenly, every muscle in Matt's body tensed as hot, heavy jets of cum splattered out of his piss slit and shot into his sister's quivering pussy.
The young girl's pussy responded with a thunderous climax of its own.
"Ohhhh, yess, Matt, yes! I can feel your cum filling my pussy all up! Keep shooting it into me, Matt!" Kris cried, clawing at his shoulders. "I'm coming, too, Matt! We're coming together!"
"Jesus!" Matt cried as he felt his sister's cunt flesh spasming violently against his orgasming prick. He had never felt anything like it in his life, and he thrilled to the fact that he and his sister were coming together.