"I can't believe we're actually doing this," Claire breathed hotly, her chest still heaving with her deep breaths.

Sam smiled, his hands running from her slim waist to her naked thighs. Then they slowly moved up her smooth legs and once more under her skirt. This time he cupped her naked ass with his hands as Claire sat completely impaled on his naked, hard dick.

"Do you think your boyfriend will think his girlfriend is cheating on him by fucking her own younger brother?" Sam asked, and Claire's smile deepened.

"Now I have your dick in me I don't care if he watched us fucking. I'd still scream your name," she replied, and it was Sam's turn to smile wickedly.

"Prove it," he replied, and Claire grinned a moment before she leaned forward and mashed her lips against his.

Once again, their tongues danced as they kissed hotly. And then, with her hands resting on his shoulders, Claire slowly began to rock her hips back and forth, moving herself on her brother's rock-hard cock. She gently pushed and pulled it in and out of her hot, very hungry pussy.

The feeling sent waves of pleasure through Claire's body and sent her mind racing. In response, she dug her nails into her brother's shoulders and moved her hips faster, and with more quickly growing enthusiasm.

"Fuck!" Sam growled in between kisses, "I can't believe I'm fucking you."

Claire kissed him hotly, her breathing growing heavier and hotter as she pushed herself up and down her brother's hard dick even faster.

"You mean that you're fucking your own sister?" she replied huskily, as she momentarily pulled her lips from his, only to return them almost instantly as an incredible wave of lust-blazing horniness rushed through her almost painfully.

"Mmm, yeah," Sam groaned into her mouth, and Claire worked her hips harder and faster.

"Ohm. I can't believe I'm fucking my little brother," she moaned breathily between kisses, her pussy gripping tightly to the ten-inch dick sliding in and out of her hot pussy faster and faster, "Ohm, fuck. Fuck, it's so hot!"

Rocking her hips back and forth, Claire and her brother continued to kiss passionately as his hands gripped to her naked ass underneath her skirt. He was pushing and pulling her, helping her fuck herself on his hard cock. The van was filled with the sounds of their panting and kissing, not to mention Claire's soft, breathy moans of pleasure.

The two continued their incestuous sex scene for a few minutes more, until Claire's body cried out to be really fucked. That’s when she broke the kiss, breathing heavily.

"Here," She said as she took hold of Sam's arms and moved his hands to hold her slim waist, "I'm going to ride your dick senseless, baby brother, so you better hold on tight."

Sam smiled and Claire returned the expression as she used her position to lift herself almost entirely off her brother's, long, hard dick. Then she slammed herself down the entire, thick length.

"Ungh!" she grunted in pleasure, her large tits jiggling underneath her lace top as she once more focused her eyes on Sam's. She then once more pushed herself up his long dick before impaling herself on the entire ten inches with a groan of lust.

Keeping her eyes firmly fixed on her brother's, Claire fell into a steady rhythm. She began to bounce up and down his thick, hard cock harder and faster. Again, and again, the hot, twenty-year-old girlfriend impaled herself on her younger brother's thick cock as it pushed deep into her burning pussy, filling her up so well and sending wave after wave of incestuous pleasure raging through her body.

It felt so good to have a dick inside her again. Oh, she needed to be fucked so badly! But it felt twice as intense knowing that that raging dick that she was slamming her tight pussy onto belonged to her younger brother. The thought made her moan loudly, and Claire's eyes blazed with passion.

"Do you like me riding your big dick, little brother?" Claire growled in animal lust, her face contorting with pleasure as she slammed herself up and down Sam's ten-inch dick. She wanted to scream in ecstasy as the rock-hard cock of her younger brother rammed into her hot pussy again and again.

"Do you like watching me bounce around on your big cock?"

"You're such a hot slut, Claire," Sam growled back, as he ran his hands up Claire's naked thighs, squeezing her smooth flesh.

He reached around to once again cup her firm ass, helping her to ride his dick faster and harder, until she, his sister, was bouncing up and down his impressive shaft enthusiastically.

Claire smiled playfully at that and gave her brother a quick, hot kiss.

"Mmm, yeah I am. Unh, I'm cheating on my boyfriend by fucking my own little brother! Oh, unhn. That's so hot," Claire growled heatedly.

She began moving her hips with more enthusiasm, fucking herself harder and faster towards an orgasm she knew was going to be mind-blowing.

"Ugh, fuck. Do you like having my big dick in your tight pussy, big sister?" Sam asked tightly between clenched teeth, and Claire smiled amusedly. Guys always seemed to ask her that.

"Mmm, oh. Yeah, baby brother. Um, it feels so big and hard, and so fucking hot. Fuck, mmm, fuck, I can't believe I'm fucking my own brother! Mmm, yes. Unm," Claire purred in reply, the words and thoughts that she was actually, really, fucking her younger brother sent a blazing hot bolt through her body.

"Ohm, fuck!"

"Fuck! That's it, sis, ride your little brother's hard dick like the slut you are," Sam groaned in lust-filled pleasure, "Fuck, I wish I could have gotten into you before."

Claire's long, dark red hair was bouncing in time with her large tits, struggling beneath the semi-see-through lace top, as she bounced up and down Sam's hard cock harder and faster. She was desperately trying to drive the enormous rod deeper each time she impaled herself on the immense shaft.

She could feel her brother's dick inside her belly, so hard and sending her to new heights, and the words only seemed to make the whole scene more intense.

"Um, oh, Sam. Oh, Sam, have you, ugh, wanted to fuck me before? Um, oh, wanted to get your dick in your sister? And watch her big tits bounce while you fucked her hard? Oh," Claire asked breathily, her stomach tingling from the questions and her ever-growing orgasm.

"Fuck! You're so hot!" Sam groaned in heated reply, running his hand up over her flat stomach to cup one of her big tits, squeezing roughly.

The feel of her brother's hand mauling her tits while his cock repeatedly filled her pussy made Claire groan loudly in lust.

Passion and ecstasy filled her body, and she didn't care then who heard or noticed. She was fucking her own brother, having his big, naked, unprotected dick shove deep into her pussy while her boyfriend was off who knew where. And, oh, she was loving every second of it. Fuck, she was never going to let him pull out of her again!

The more Claire rode her brother's cock, the more she gave herself to him completely. She would do anything for the intense feeling not only cheating on her boyfriend was giving her, but cheating on him with her own little brother.

***

Sam couldn't believe how good his sister's big tits felt as he squeezed them both roughly through her lace top while she continued to ride his dick as if she were possessed. He could hardly believe that he was actually fucking his older sister! How had that happened?

Not that he cared right then. The feel of her hot, tight pussy clamping around his thick dick as she pushed herself swiftly up and down the ten-inch length felt too good to make him care that they were committing incest. Besides, she was hot and wanted his dick, so fuck it. And 'fuck it' was exactly what he was, and intended, to do.

"Your tits are so fucking hot," Sam growled as he leaned forward to bite Claire's big tits through her top, bringing a delighted moan from his sister, "Fuck. I've always seen you walking around in those T-shirts. Fuck, with your big rack. Man, I can't wait to fuck you when we get home and grab your tits all around the house."

"Ohm!" Claire moaned as she momentarily grabbed the back of his head, pulling him into her soft but firm tits, "You can have them, and me, whenever you want, little brother. Uh. Fuck, uhm. Fuck!"

Looking up at his sister as he pulled his face from her tits, Sam smiled wickedly. His hands returned to her waist, and he pulled her towards him. Their lips mashed together, and they instantly began a hot, deep, incestuous kiss, all while Claire continued to rock her hips back and forth, desperate to cum.

Suddenly, Sam broke the kiss and stared deep into her eyes, holding her still. Claire whimpered in frustration as her brother held her still on his dick.

"Do you want your brother to make you cum?" he asked, as he looked up into his sister's sparkling green eyes.

"Mmm." Claire moaned, nodding in assent and frustration, "I'll do anything, Sam. Anything!"

Sam flexed his dick inside her pussy, bringing another whimper from the hot, horny, cheating and incestuous redhead, before he spoke again, tightening his arms around her hot body.

"Then I think I should fuck you. What do you think?" he asked teasingly, and Claire suddenly seemed to understand what he was getting at. Her entire face brightened, and her eyes shone in lust.

"Mmm, fuck me, little brother. Fuck your big sister and make me scream. Ram that big dick of yours into my unprotected pussy," Claire purred hotly, and it was Sam's eyes' turn to sparkle.

Growling in passion, Sam wasted no time in holding his sister tightly in his arms. Then he quickly lifted her, his dick still buried deeply in her body, and lay her on the floor of the van.

Untwining his arms, he placed one hand on either side of her and stared down into his sister's gorgeous face.

Her green eyes sparkled in the dim light of the van, and her dark red hair fanned out around her beautiful face. Her delicate hands rested on his arms, and her big tits heaved as she breathed heavily in anticipation. All while her face stared deeply into his, as she lifted her knee-high boot-clad legs and wrapped them tightly around his waist, locking them behind his back.

"I'm yours for the taking now, little brother. Give it to me. And fuck me, little brother. I want you to fuck me!" Claire said in words that seemed to drip hot lust, and Sam smiled.

This hot woman beneath him was indeed the sexiest girl he had ever seen. And what made it hotter, she was his own sister. Now he was going to show her just how good her little brother was.

Without wasting any time, Sam immediately fulfilled his sister's wishes and swiftly pulled his long, thick dick from her tight, hot pussy before thrusting forward hard, driving his entire big dick deep into his sister's needy pussy.

"UGHN!" Claire grunted loudly as he slammed his cock balls deep into her hot body. Her fingers gripped harder onto his arms as he began to pump his hard cock in and out of her very willing body relentlessly.

Gritting his teeth, Sam concentrated on fucking his sister as hard and good as he could. His thick cock began to slide swiftly in and out of her pussy with powerful thrusts, causing the van to shake on its unsteady suspension every time he buried his hard cock into her pussy.

With each thrust, the van shook and bounced up and down, and with each movement of the van came a loud squeaking of the suspension, marking the hard, hot, and fast illicit incestuous sex session going on in the back of it.

All the time, Claire gripped hard onto Sam's arms, digging her nails into his flesh, as she arched her back. Her mouth hung open as she moaned loudly, while Sam continued to pound into her with his raging dick.

"Oh, yes. Oh, fuck. Oh, yes, Sam. Ungh. Fuck, give it to me! OH, FUCK! Oh, fuck. Fuck me! Oh, fuck. Fuck me, little brother. Fuck me. Oh, fuck. Drive that big fucking dick into me hard. UGH!" Claire moaned loudly, her eyes burning with passion as she alternated between staring up into Sam's eyes and rolling them back into her head. Her beautiful brother continued to fuck her hard and fast, her hips thrusting up to meet his hard-driving cock.

"Uh, not so 'little' now, am I?" Sam grunted, as he rammed his dick home into Claire's hot body, once more bouncing the van and bringing a sharp squeak in protest.

Claire smiled playfully as she purred in a half-growl, her hands running up Sam's arms so that her fingers could run down his back.

"Mmm, your dick is so big and hard, baby brother! Oh, ugh, fuck. It feels so good filling my pussy. Give it to me harder, baby. Fuck your sister!" Claire replied heatedly, and Sam complied, using every drop of energy he had to fuck his sister as hard and fast as he could manage.

"Oh, yeah. Oh. Oh. Oh, fuck, yes!" Claire groaned loudly, echoing the sound of her pleasure throughout the van. She tightened her legs around Sam's waist, pulling him deeper into her hungry pussy, "Oh. Ugh. Fuck. Give me that big cock, little brother. Uh. Show Mike how to fuck his slutty girlfriend!"

Sam growled in lust as he pistoned his hard rod in and out of Claire, fucking her so hard the van now bounced violently up and down, pushing Claire up as he thrust down. The movements forced his big dick deep into her hot, tight pussy, slamming his hips into hers with a loud smack.

Anyone outside in the parking lot would no doubt be able to see the van bouncing up and down on its suspension, not to mention creaking and squeaking. Though Sam doubted anyone who witnessed the obvious sign that someone was having sex in the back would think that it was a guy fucking his hot older sister like the slut she was. That thought made Sam double his efforts, and he drove his dick home with as much force as he could.

"Oh, Sam, this is so good. So fucking good! Oh. Uh. Oh, fuck me, little brother! Ungh. Yes. Oh, fuck, I've needed this so bad. Fuck. Fuck. Oh, fuck, this is the best fucking, oh, mmm, the best sex I've had all day! Fuck. Oh, fuck me, Sam. Oh, yes, fuck me," Claire moaned lustfully, her eyes rolling up into her head as she arched her back, pushing her big tits tight against her semi-see-through lace top.

Opening her eyes again, Sam stared down deep into his sister's sparkling eyes as she spoke deliberately, "Fuck me, Sam! Fuck me. Oh, um, fuck me hard, baby brother. Fuck me! Ohm, please fuck me. Umngh, oh, fuck, yes. FUCK ME!"

Sam couldn't believe how hot she was. Not only did her pussy clamp tightly around his dick as he fucked her hard, but the words she said, words he had never thought to hear, drove him ever on.

He could not believe that he was actually fucking his own sister! Not to mention that he was doing her at the biggest festival in Shorehaven, in their friend's van, while her boyfriend was somewhere out there with three of their friends.

This was not a dream! He actually had his ten-inch, thick dick buried in his own sister's pussy, fucking her so hard that the van was bouncing up and down on its suspension.

Looking down, breathing hard, at his gorgeous sister, writhing in ecstasy as he drilled his cock into her hard and fast, Sam watched as Claire reached down and grabbed both of her big tits over her lace top. She began to roughly squeeze them in her hands, pushing them together as she stared into his eyes, moaning in pleasure.

"Oh. Uh. Yeah. Yes. Yes. Oh, fuck. Fuck me, little brother. Ram that big dick of yours into your sister! Uhm, yeah. Fuck me hard, Sam. Oh, fuck, yes. Ohm, come on, Sam. Umngh, you're fucking your own sister, baby. Oh, yes, fucking her so good. And, oh, fuck, I love it. Ungh. I love your big dick! Oh, fuck, it feels so good in me. Fuck me, Sam! Unghm, yes. Oh, yes. Mmm," Claire groaned lustfully, as Sam watched her maul her big tits roughly.

Burning with heat and lust Sam panted from the exertion of slamming his rock-hard, ten-inch dick repeatedly into his older sister's burning hot, tight pussy.

Growling in animal passion, the 18-year-old younger brother reached for his sister's hands, one after the other, and held them above her head, pinning Claire down under his own hands. He once again rammed his dick into her, and as he did his sister's legs clamped tightly around his waist, pulling him into her very welcoming pussy.

"Oh, fuck. Yes. Uh. Oh. Oh. Yes!" Claire moaned so loud it was almost a scream, as Sam held her down by her hands and continued to pump his thick cock into her wanton body, "Fuck me, baby! Oh, fuck, yes, give it to me good. Uh, uh, uh. You're, oh, fuck, um, yes, oh, you're fucking your own sister, Sam! Uh, oh. So fucking good. Give me your dick, little brother! Oh, fuck, yes. Um, oh, pound that big cock of yours into your sister's hot pussy. Make this van bounce!"

"Fuck! We're committing incest! Fuck. Yeah. Ungh, you're so fucking tight," Sam panted, as he alternated to rotating his hips, before he once more began pounding his sister's hot pussy relentlessly, "Does Mike fuck you like this?"

With his heart pounding as fast as his dick was pounding his sister, Sam's finger's tightened as he held Claire's hands above her head. He was really enjoying the sight of her accepting the hard...