A loving sister and a sadistic sister must sit on their brothers' laps during a road-trip.

All characters are 18+.

The strip club’s annual team-building trip to the remote lakeside cabin was supposed to be relaxing. Instead, the luxury van broke down, forcing everyone into one ancient, beat-up SUV. With 6 people and far too much luggage, two passengers had no choice but to sit on laps for the entire five-hour drive. Erotica (Stripperella) ended up in the back row, sitting directly on her younger brother Jake’s lap. Kat, never one to be outdone, sat on her own younger brother Tyler’s lap. Both brothers were already rock-hard before the car even left the parking lot. Despite the unbearable awkwardness, Stripperella was greatly impressed with her brother's size. Though both brothers felt shame about it, they'd been obsessed with their sisters' perfect bodies for years.

The first hour was pure intensity. Every bump in the road made Erotica’s thick, perfect ass bounce and grind down on Jake’s cock through his speedo. Her tiny pleated skirt had ridden up almost immediately, leaving only a thin pink thong between her bare ass and his throbbing bulge. Jake was leaking pre-cum within minutes. Erotica noticed. Her cheeks flushed pink with embarrassment. “Jake, um, you’re really hard right now,” she whispered, sounding genuinely apologetic.

“I’m sorry, I know this is so wrong. Your butt is just so- I can't help it.”

"I'm gonna try to get you to calm down. Sorry, this might sting a bit."

She reached back discreetly and gently poked between his balls through his speedo.

"Ooooffffuck. That- that really hurts."

"Oh sorry, didn't think it would hurt that much I'll be more gentle." Trying to be helpful, she gave his balls a soft, innocent squeeze.

He groaned, desperately trying to stay quiet. "That hurts m-more."

“So sorry Jake, I’m just trying to soften it,” she said genuinely, squeezing a little harder. “I don’t want you to stay like this the whole trip.”

Jake whimpered quietly as she kept gently squeezing and poking his balls every few minutes, trying (and failing) to make his erection go away. Each time she apologized profusely, her voice soft and kind, but her hand never stopped.

On the other side of the luggage, Kat was far less gentle. She sat on Tyler’s lap, her green thong bikini-clad ass pressed directly against his cock. She had already demanded and received $400 from him “for the privilege” of her sitting on him. Every time Tyler’s cock throbbed too obviously against her, Kat would casually reach back and slap his balls hard through his shorts. SMACK. “Stop getting so hard, you little pervert,” she hissed. “You want to keep feeling my ass? Then pay up. Another $200 or I slap them again.” Tyler would whimper, send the money, and Kat would laugh softly before grinding her cheeks along his shaft again, only to slap or squeeze his balls harder whenever he got too close to the edge.

The deeper they drove into the countryside, the bumpier the road became, and the deeper their cocks slid between their cheeks. Their desperate cocks even slid through their flies, making them gasp with pleasure. With how bumpy the road was, Erotica may as well have been giving him an epic lap dance. His big cock was swallowed by her luscious cheeks and it vibrated and bounced. Kat would often add to the intensity by squeezing her cheeks around Tyler's big cock as she ground hard.

Erotica kept trying to help her brother. Every few minutes she would reach between their legs, poke his swollen balls, then give them a firm, apologetic squeeze. “I’m so sorry, Jake… I just don’t want you to stay so aroused the whole way,” she whispered, voice full of innocent concern as she crushed his balls in her hand. “Does it hurt? I’m trying to be gentle.” Jake could only whimper and nod, his cock leaking constantly while his balls throbbed from her repeated “helpful” squeezes.

Kat was even more ruthless. She had already drained Tyler of nearly $1,800. Every time he got too excited, she would reach back, slap his balls sharply, then squeeze them hard while demanding more money. “Another $300 or I crush them until you cry,” she whispered cruelly, twisting his balls in her hand. “You’re my brother. You’re supposed to take care of me, so keep paying.” Tyler was shaking, tears of both pain and pleasure in his eyes, but he kept sending the money while Kat’s perfect ass continued grinding on his pulsating cock.

By the time they were only thirty minutes from the cabin, both brothers were fully consumed with lust and man-pain. Jake’s balls were swollen and bruised from Erotica’s countless apologetic squeezes and pokes. He had been edged mercilessly the entire drive and was desperate beyond words.

Erotica kept whispering soft genuine apologies while still squeezing and shaking his balls. “I’m really sorry, Jake, I just don’t want us to be uncomfortable the whole trip.”

With his eyes glazed over from the overwhelming sensations, he could only whimper, "F-fuck."

Kat had drained Tyler of almost everything in his account. His balls were purple and aching from her repeated slaps and squeezes. She was still grinding on him slowly, enjoying his suffering.

As the SUV finally pulled up to the cabin, both brothers were right on the edge of total collapse. The moment the car stopped and the others started getting out, Jake whimpered, "Please sis, I've been edged for five hours. I need to cum so bad."

Erotica looked over her shoulder at him with pity and love. ”My poor baby brother." She used her lap dancing skills, which were the best in the world. It was total overkill as she gyrated in the sexiest of ways, rocketing him past the edge. He came violently in her cheeks, thick ropes of cum soaking her. In the peak of his climax, he involuntarily squeezed her big perfect tits. Erotica could not help but smile as she kept gyrating. She finally admitted to herself that her brother's big cock felt wonderful.

That exact same moment, Kat slammed her ass down hard on Tyler’s cock and squeezed his balls with maximum cruelty. Tyler exploded too, cumming harder than he ever had in his life, flooding her cheeks while crying out in pain and pleasure. Both brothers sat there, spent, humiliated, and completely drained, while their older sisters stood up like nothing had happened. Erotica adjusted her skirt, blushing. “I’m really sorry about my butt Jake."

Still trying to catch his breath, he smiled and said, "I'm not."

Kat just smirked, looking over the thousands she had taken from Tyler during the drive. “Best road trip ever,” she said, slapping her knuckles into her brother's balls before walking. He fell into the floor in a ball, clutching his dominated manhood as he winced at her irresistible jiggling butt.

Both brothers already knew they were completely owned by their sisters.