It had been a long, yet eventful few days for Noah and Alicia's family. They had taken a road trip to visit their aunt and cousins, including their newborn cousin. It had been eight months since she was born. Noah and her got well-acquainted. Aside from that, the trip was filled with backyard games, swimming, food, and a visit to a mall. It was a nice time, but alas the trip was coming to an end as they were making the drive back home.
It was nighttime. After stopping for a couple of hours to get some rest, they continued the drive. Their father was driving the family's SUV while their mother slept in the passenger seat. Their father had some music playing on the radio to help him focus but had the volume low enough so that it wouldn't wake their mother. Noah sat in the back row scrolling through his phone to pass the time, while Alicia slept beside him, resting her head on his shoulder while she snored softly. The two had been sharing a blanket during the long drive. Alicia stirred in her sleep causing her head to roll off of Noah's shoulder and fall forward, waking her.
Noah laughed to himself as he watched. Alicia sat up and rubbed her eyes as she let out a long yawn, still a bit sleepy.
"Hey, sis," Noah whispered and put his arm around her.
"Hey, Noah. Are we almost home?" she asked while looking out the window and watching the sights go by.
"Not really. I think we still have another two hours until we're there," he answered as he checked the time on his phone.
"Aw. What am I gonna do for that long?" she pouted.
"You could use your tablet or something, or try going back to sleep?" he suggested.
"But I already went to sleep, and I don't feel like using my tablet."
"Well, we can't play any road games like 'I Spy', it's too dark out. Plus, mom's sleeping." he reasoned and began thinking.
He was going to suggest that she could find some videos to watch to pass the time, but while in thought and as he tried to sit up and get more comfortable he remembered that they still had a blanket over them. Then it dawned on him, he knew what could keep her entertained.
"Hey, you wanna play with each other?" Noah asked and brought his hand down to her flat chest.
"But mommy and daddy are in the car," Alicia whispered as she motioned to the two upfront.
"I know, but dad's too busy driving and mom's asleep. Plus, dad has the radio on. If we're really quiet they won't hear us way back here. Just try to stay under the blanket."
Noah knew it was risky, it was probably their riskiest fuck yet, but what he said did make sense. Plus, he was becoming rather bored himself. Some brother-sister fun in the backseat would surely make this ride more tolerable. As long as they weren't caught.
With no reason not to trust her big brother, Alicia nodded in agreement.
"Alright, good. Let's get our pants off," he said in a voice quieter than before, then carefully slid down his shorts.
Alicia did the same with hers and then sat with her legs spread wide enough to give Noah access. Noah's hand moved down between her legs and he slowly ran his middle finger up along her panty-covered slit. Noah continued the motion, applying a bit of pressure and going just a bit faster so she could really feel it.
Alicia wrapped her arms around Noah's arm and rested her head on his shoulder as his finger moved up to her young clit, showing it some attention as his fingertip circled over it repeatedly, causing her to bite her lip to quiet a moan. She moved one hand down between Noah's legs and placed it on top of the growing bulge in his underwear, running her hand over it for a moment before squeezing it playfully. Soon he was at full mast.
By then Noah could feel Alicia's panties starting to get wet. He glanced forward to make sure their father was still distracted. Once he was sure he turned to Alicia.
"Okay. Panties off," he whispered, to which Alicia followed.
After carefully taking them off she returned to her position. Noah ran his finger along the lips of her flower before slipping his fingertips inside, gliding just along the walls of her entrance. He kissed her forehead before sliding them in deeper, making her wrap her arms around his tighter. He could feel her getting wetter as her cunny coated his fingers. Now that she was nice and wet, he went faster.
Noah began shoving his fingers as far they could go inside her young cavern, all the way up to his third knuckles. He curled his fingers inside her each time they reached the furthest depth. Alicia was really getting into it and even started moving her hips in time with the thrusts of his hand. She started to feel that tingly feeling build within her as soft moans fell from her mouth.
After another couple of minutes of having her cunny fingered the feeling was too great and she knew what was coming next as she began panting softly. Noah knew what was coming too. After a few more strokes he slipped his fingers out of her slick cunny, leaving her breathing heavily and humping needily.
As hot as it would have been to make Alicia orgasm like that with their parents in the car, even Noah knew that would have been a bad idea.
Noah brought his fingers up to his mouth and licked them clean. Her taste made his cock throb. He reached down and pulled his underwear down enough to free it, letting it stand and throb in its full glory.
"My turn, Ally. Get under the blanket and put your mouth on it," he instructed, lifting the blanket for her.
Alicia lay on her stomach in the seat with her face between Noah's legs. He covered her with the blanket and then put his hand on top of her head. As Alicia moved closer to his cock, his teenage scent filled her nose. She wrapped her small hands around his thick shaft and began stroking it firmly. She swirled her tongue around the tip as she gripped the base, causing Noah to let out a gruff moan.
Alicia pushed forward, taking him into her mouth and slowly bobbing her head on his length. Noah leaned his head back with his eyes closed, enjoying the little mouth on his cock as he moved his hand to the back of her head. He did not push her head down, and instead let her go at her own pace, at least for the time being.
It wasn't long before Alicia went down further. She gagged as she felt the tip brush the back of her throat. She took a moment before coming back up, keeping the tip in her mouth, before gliding all the way back down to that point. She continued the motion over and over, gliding her mouth on his thick shaft as her tongue lapped the underside.
Noah's eyes practically rolled to the back of his head as he tried his best to remain quiet. He really was convinced that Alicia got better every time she sucked his cock. It throbbed in her mouth as he could feel himself getting close. Now it was time to be rough. He hoped she could stay quiet enough for what he was about to do.
He shoved her head all the way down and thrust his hips upwards at the same time, catching Alicia off guard. His entire length was in her mouth and the tip rested deep in her throat. She gagged a couple of times and tried to retreat, but Noah held her head firmly in place. She had nowhere to go but between her big brother's legs.
Noah grabbed her neck with his other hand and began thrusting upwards into her mouth. Alicia could do nothing but place her hands on his leg to brace herself as her throat was roughly fucked. Even with the sudden change of pace, she couldn't say she wasn't enjoying herself. Noah would never do something she wouldn't enjoy. Though sometimes in the heat of the moment, he couldn't care less, as long as he was getting off.
Noah could feel his climax getting closer as his balls churned with cum, eager to release. He thrust faster as his tongue hung out of his mouth. Knowing their parents were just in the front of the car as he was facefucking his little sister added such a wonderful spice to it. Just as his floodgates were about to burst an idea came to him.
Could he take it a step further?
Noah quickly stopped his movements. He held Alicia down on his shaft for a moment, letting it sit deep in her throat before grabbing her by her hair and pulling her off his cock. She took the time to catch her breath as Noah petted her head.
"Good girl, Ally," he whispered as he moved the blanket from over her head.
"You didn't finish," she said as she looked up at him curiously, giving his tip a lick.
"I know, I have an idea. We're gonna play Cowgirl, so you're gonna sit on my lap," he said while helping her sit up.
Cowgirl was really just Alicia riding Noah's cock, but he managed to turn it into another one of the games they played. It wouldn't completely be the same without the costume she would put on, but that was all the way back at their home. That certainly wouldn't stop her from playing.
While still under the blanket Noah took Alicia by her hips and sat her on his lap, his cock standing tall between her legs. He grinded it against the lips of her cunny, and in turn, she reached down and gave it a few strokes. He lifted her and positioned his cock with her moist opening, prodding it with the tip.
Wasting no more time, he abruptly pulled her down, impaling her young pussy on his impressive shaft. Alicia had to quickly cover her mouth to stifle the sounds of pleasure that almost came out. Giving her a moment to adjust, he began guiding her on his cock at a steady pace. She was still fairly wet making her pussy glide on his cock with ease.
Noah began thrusting into her in time with him pulling her down. Her young walls gripped his thick cock. No matter how many times he fucked her she was always so tight, and he loved it. Each thrust pressed his tip against her cervix.
Noah picked up the pace as Alicia was completely overcome with pleasure. Her hands fell from her mouth and she instead placed them on Noah's knees for support as he fucked her. His breathing became heavy as his thrusts became harder. The two were completely lost to their passion, so much so that they began to forget about their surroundings. Alicia couldn't stop a rather loud moan from escaping her mouth caused by a particularly hard thrust from Noah.
"Hey, you kids alright back there?"
Noah's heart skipped a beat at the sound of the voice and the two stopped all movements. It was their father, he must have heard them. How much did he hear? Did he know what they were doing? Trying not to freak out, Noah took a moment to calm down and think of something before responding.
"We're good. Alicia was just getting comfortable," he answered, hoping it would be enough.
"Ah, alright." their father answered, not once taking his eyes off the road.
Noah and Alicia remained motionless for a couple of minutes. Noah's pulsing cock remained in Alicia the entire time. Once he was sure the coast was clear he began dropping Alicia on his cock again as he thrust deep into her.
That was too close.
As big of a thrill as it was, Noah knew it was time to finish it. He put his hand over Alicia's mouth and started thrusting even faster. Even with her mouth covered Alicia tried her best to keep the noise down as Noah jackhammered her pussy.
Alicia trembled as that warm feeling in her cunny returned and began to grow. Noah bit his lip and breathed heavily as he could feel himself about to give in. He doubled his efforts and tightened his grip on Alicia, pulling her down with greater force and thrusting as hard as he possibly could in his position
Alicia's mind and body were overloaded as she was the first to cum. Her juices flowed from her young cunny and ran down Noah's cock as her inner muscles massaged his cock. It took everything she had not to scream into his hand. Once she was finished she relaxed her body against Noah as he continued to fuck her without mercy.
The fucking continued just for another moment before Noah reached the finish line. His last thrust was so hard his cock almost pushed straight through her cervix and into her womb. The tip pressed firmly against her cervix as he unleashed a potent load into her young womb. Rope after rope spurted into her until she was completely full of her big brother's seed.
Noah relaxed in the seat as he finally uncovered Alicia's mouth. The two sat catching their breath, still feeling the afterglow of their orgasms. As Noah's cock went soft it popped out of her pussy, allowing some of his seed to leak out.
Just as he was about to ask her if she enjoyed herself he could hear that she had begun snoring. The rough fuck had tired her out. He kissed her on the head before yawning. He certainly wasn't bored anymore, but he was rather tired. He didn't bother pulling his underwear back up and instead wrapped the blanket around them better as his eyelids began to feel heavy. He rested his head on the window and finally fell asleep with his arm around Alicia.
"Cocky little brat. Doing that with his parents in the car? No shame." their father said to himself.
He had been watching them through the rearview mirror almost the entire time.
The bulge in his pants couldn't hide the fact that he enjoyed the whole thing.