"God, do it!" he gasped.
"Just try to stop me, big fucker," Carla groaned, stretching her head forward into his lap.
She licked her lips. She opened her mouth. She aimed Whit's prick toward her face, her head half under the steering wheel. Her rump pressed tightly against Monica's leg and weaved erotically.
"Yeah – yeah!" Whit groaned.
Warm breath washed moistly over his throbbing prick. Then her tongue came out and licked up the underside of the standing shaft. It circled the bulbous head, and then she plunged her mouth down over his cock.
"Ahhhh, God!" Whit groaned, slowing down even more.
Monica clamped her tingling thighs together tightly. Her pussy throbbed with quick heat. She held her breath and listened to the wet, obscene sounds Carla's mouth made as she sucked with abandon on Whit's jerking, pulsing prick.
"Mmmmm, so hard!" she gasped, sucking her mouth from it, her hand jacking up and down. "Ohhh, it makes my cunt hot!"
She shifted, getting to her knees on the floor, her butt bumping the dash. She tried to reach behind herself but couldn't.
"Monica!" she gasped. "My pants! God, pull my pants down! Ohhh, Jesus, hurry! Just reach out and pull my pants down over my ass so I can… ohhhhhhh, do it!" she gasped, her hand working between her thighs, her lips kissing and sucking at Whit's stiff prick.
"Whit…" Monica wailed. "Whit, we're going to have a wreck!"
"No, we're not, Sis," he groaned. "Quit worrying about it and do what she says. Pull her fucking pants down!"
"Whit…"
"You wanna go back home, damn it?" he cried. "Baby sister is sure as hell right – accent on the baby!"
Carla's mouth sucked down over his cock again, her lips nibbling toward the base of his shaft, sucking and pulling, making very wet sounds in the closed car.
"Ahhhhhh, pull them down!" she gasped.
Monica sucked in her breath. She looked at the weaving roundness of Carla's ass. She reached out, hesitating. Her pussy was beginning to leak and flutter. She took a deep breath and caught her fingers in the material at the waist and began working the pants over the round, tight swells of Carla's ass.
"Oh! Oh, hurry!" Carla urged, her fingers working at the front of the waist.
Monica was bent nearly double. Her tits pushed against her knees, and sensation shot through them. She gave a final pull, and then the white, taut flesh of Carla's asscheeks gleamed nakedly in the dim light.
She stared down, looking into the deep, shadowy cleft between them. A heady aroma wafted upward, the smell of hot, juicy, leaking cunt.
She heard a wet sound and saw Carla's fingertips appear between the full cheeks. They wriggled and slid from sight under her heated crotch and appeared again, soaking wet with pussy juice.
"Ahhhhhh, God!" Carla gasped, driving her fingers back and forth over the mouth of her fluttering pussy, masturbating her straining clit.
She began to suck steadily on Whit's prick again, her head bobbing, her lips making wet sounds. Monica watched, looking from the thorough sucking to her brother's blissful face, to the sliding, swirling fingers.
She moaned in the back of her throat and shivered with terrible heat. Watching them suck and fuck from the balcony was one thing. Being right there with them, where she could smell every stray whiff of wet cock and hot cunt and could hear all the sounds filling the car – that was something else.
She couldn't keep from pushing the heel of her hand between her thighs, pressing down hard on her heated pussy. She had the wanton notion to nick her skirt back and spread her knees and masturbate right there with them!
"Ohhhhhh, God," she moaned softly, pushing and pushing at her lap.
Carla sucked her mouth from Whit's throbbing, red prick and looked back. "Do it, sweetie!" she gasped. "Go ahead and do it, we don't care! Ohhhhh, don't suffer and be hot! Go ahead and stick that wet pussy out and fuck it hard and come with us!"
"Ohhhhhh, God – I can't!" Monica cried, her breath sticking in her throat, her heart pounding.
"Then do me!" Carla gasped. "My arm's bent all wrong, and I can't really get a good… ohhhhh, God, play with my ass and reach down and tickle my pussy, honey! Do it for me, and I'll do something extra nice for you!"
"God, I can't! Whit…" she cried.
"Tickle her cunt, damn it!" Whit cried, jerking, frying to feed his trembling prick back into Carla's mouth. "I told you to do whatever she said, or I'll take you back home right now! And you don't have to worry about Burke. We'll have a swell time without you, Miss Priss – just the three of us. Carla's ass is hot enough to go around. You know that for a fact. And if you think ol' Burke's gonna pass up a hot piece like her, you're dumber than I thought. Now, tickle her cunt and play with her ass and do anything else she tells you to!"