It all started with an unplanned car ride through the night after getting a call telling them that Carol's sister had been in a car accident. As the family of six prepared to pile into the SUV Tom wished they hadn't gotten rid of their other car. But with Covid making it so him and Carol were now working from home permanently, it just hadn't made sense to keep both vehicles. Especially with the twins about to join their brothers in college. With the two older boys home for the summer, this trip was simply bad timing and they would just have to make it work.
Although it was the largest SUV available without third row seating, it didn't have that extra seat. Like Tom, the three boys were tall and athletic, so the logical arrangement for maximum comfort would have been for his wife and daughter to ride in the backseat with the two younger boys. The women's petite sizes would allow for more comfort while also letting Tom and Jason take turns driving and napping. But he knew that wouldn't happen. Despite Carol's many good qualities, she had her selfish side and, as expected, she insisted on taking the front passenger's seat.
Missy would just have to sit on one of her brother's laps.
Loading their bags into the backend, Tom briefly thought about asking his daughter to ride back there. Afterall, she was tiny enough to make it work. But he quickly discarded the idea, thinking it would be wrong to even ask her to.
This led to him wondering how they had ever gotten to the point where his little girl was eighteen and about to go off to college. It seemed both an eternity ago, and yet only yesterday, that Carol had been pregnant with the twins and he had been thrilled to learn that they would finally have a daughter. At the time he hadn't thought about the tortuous nights once she started dating, not to mention the recent anxiety from her going off to college and living in a dorm. He tried telling himself that he didn't have to worry, that she was still too innocent for those things.
And there were actually fleeting moments when he believed it. Moments when she was dancing around in one of her anime cosplay outfits, her slim lips curled into a playful smile under her perky little nose. With her big, sparkling brown eyes and dyed-pink hair in pigtails, she just looked too young and innocent to be interested in boys. But then he would inadvertently notice the subtle curve of her firm B-cup breasts or her taut little ass under the costume and the moment would vanish.
"I'll sit behind Mom first," Jason volunteered, interrupting his dad's thoughts.
"Thanks," Tom smiled at their eldest, knowing what he was doing. Carol might have insisted on having the front seat, but she would also pull the seat all the way forward, giving whoever sat behind her all the leg room possible. This meant that Missy would be on that brother's lap.
"But we are alternating when we stop for gas." Jason looked pointedly at his brothers.
Nodding in agreement, Chris and Frank played a game of rock-paper-scissors to decide who got to sit next to the other door. Frank, Missy's twin, won. Then they all piled in and, popping in their earbuds, each kid focused on his or her phone. Putting his own earbuds in so he could jam out to the music that would help him stay awake, Tom guided the vehicle to the highway. In the passenger's seat, Carol was soon quietly snoring, aided by the pills she had gulped down.
Straddling Jason's legs, Missy tried to get and stay comfortable. But she was forced to continuously shift this way or that whenever her dad switched lanes or slowed down because of traffic. Initially this made it difficult for her to maintain focus on the videos she was watching until she eventually got used to it. Then, making the adjustments without thought, she did get lost in the videos. This kept her from noticing the growing manhood under her for a while. When she did finally notice it, she had to suppress a giggle.
Although not very experienced, she knew that guys in her age bracket would get unintentional hard-ons. Assuming this was the current case, being a good little sister, she couldn't resist the chance to mess with her oldest brother.
For the next several miles she pretended to be unaware of his condition as she used the car's motions as an excuse to shift and slide in his lap in an exaggerated fashion, pressing her ass down against him in the process. With everyone wearing loose gym clothes, his shorts did nothing to confine his growing thingy and she had to suppress more giggles.
When she felt a tap on her shoulder, she removed one earbud and turned to look over her shoulder.
"What?" She tried hiding a smirk and look innocent.
"You're wiggling around an awful lot." He had also removed an earbud and his annoyed expression told her that he wasn't buying her act.
"Am I?" She couldn't stop her smirk from growing.
"Just stop it," he grumbled, putting his earbud back in.
Now openly giggling, Missy also put her earbud back in and turned her attention to her phone once more. Her amusement kept her from noticing a warmth tingling throughout her body for a few minutes.
Oh shit! She thought when it did register and she realized that it was emanating from her special place. Replaying her recent actions in her mind, color rose to her cheeks with the sudden memory of her inadvertently shifting in Jason's lap to rub herself on his thingy, effectually dry humping him. And it didn't matter to her body that he was her brother. It had simply reacted to the sensation of his hard thingy rubbing against her special place.
Taking a moment to mentally thank him for stopping her, she tried to ignore the warmth and focus on her phone.
But it wasn't easy.
While his thingy lost most of its rigidity, she now couldn't help being aware of her tiny ass resting atop it and had to concentrate on not overdoing it when the car's motion forced her to move. Frustratingly, this kept the warm tingling alive.
