"Goddam, that's good!" Brad grunted, gyrating his hips. He leaned his head back and sighed. "So fucking good!"
Robin pulled slightly back, letting his nuts glide between her teeth, then grabbing his bobbing prick, she thrust it fully into her throat. Already, she could feel the base of his shaft jerk. Boiling wads of sperm vibrated inside his nuts as they pressed against her chin.
"Mmmmmmmmm!" she moaned, almost losing control, wanting nothing more than to eat his steaming load of cum.
She pulled away from him quickly, regretting to stop. She smiled at him with glistening lips, and walked to the door.
"Hey! Where are you going!" Brad said, panic in his voice. Then he saw his sister walk into the room. His mouth dropped to a foolish-looking gape. He knew when he was beat. He looked at Robin and shook his head, "I don't know whether to break your neck or thank you." Then to his sister he said, "Okay, get your ass over here. I'm about to cum down both legs!"
Not giving her brother the slightest chance to change his mind, she scuffled over and knelt between his legs. She grasped his prick in both hands and sank her lips around the thick, blood-engorged cockhead. She felt Brad quiver with excitement as she inched her lips further down his shaft. Her own excitement was so great, she didn't even know when Robin left the room.
Although it was the first time Wendy had ever had a dick in her mouth, she was doing a spectacular job. At first her throat muscles locked, causing her to gag, but with each lunging thrust, she relaxed more and more. Finally, the huge cockhead slipped evenly inward, almost into her lungs.
"God, if I'd known you were such a fantastic cocksucker, I'd have jumped on you a long time ago!" Brad winced, his voice quivering with pleasure.
Wendy felt a surge of warmth throb inside her cunt. It was certainly nice having Robin's tongue in there, but just thinking about having her brother's gigantic cock grinding away in her pussy, made her gurgle with hot, wet moans.
"Suck my nuts too, just like Robin did," Brad whispered. "Put them in your mouth and chew on them!"
She slipped her mouth up the shaft and released it. As it flopped from between her lips, it slapped noisily against his stomach. She ground her nose against the underside and sucked the two, hairy balls into her mouth and gently scraped the surfaces with her teeth.
"Oh, Christ!" Brad grunted, feeling his aching nuts being bathed in a hot pool of sucking warmth. "Suck me all over!"
Wendy released his balls and began lapping and sucking every square inch of his crotch. She flicked her tongue between his thighs, past his nuts, and wetly licked his hairy, dark shitter opening. Then, chewing and biting with her lips and teeth, she sucked her way back to his cock. She gobbled it down in one, slippery gulp.
"Goddamn, baby sister, I'm about to shoot off!" he groaned. "You want to take it in your mouth or your cunt?"
This was the most difficult decision she had ever been faced with. She remembered Robin's description of Paul's thick, creamy sperm, and how it gushed and oozed in hot spurts. She wanted so much to gargle it into her lungs and eat it, but she also wanted to have him pounding away on her cunt, stuffing her full of hot cunt.
"Fuck me!" she whispered, slipping her mouth off of his prick. "Oh God, fuck me!"
With lightning speed he undressed his sister and pushed her down on the bed. He spread her knees with his legs and ground his cockhead against her narrow, frothy cunt.
"This is my first time," Wendy said.
It hadn't even occurred to him that his sister was a virgin. And here he was, about to slam his cock into her with one gigantic thrust. He stopped all movement and bit his lower lip.
The sudden realization that it was his sister hit him. She looked so tiny, fragile and trusting. He kissed her gently on the lips, then probed his tongue into her mouth. It took every ounce of effort, but he managed to keep his hips from driving forward.
"Do it! I can't wait any longer!" his sister screamed, her voice muffled against his kiss.
What she did surprised him. Without warning, she thrust her hips upward, engulfing his prick with her warm, slick pussy. He felt a slight snap as his cockhead tore the membrane of her virginity. His sister was in such a frenzy of ecstasy, she obviously hadn't even noticed.
"Unnnnnnhhhfff!" she cried out, her cunt becoming inflamed with throbbing ripples of total release.
Brad was momentarily stunned with her reaction. He simply couldn't believe that her tight, tiny cunt could take the full length of his cock. He was dead wrong. Her pussy lips lapped at the base of his cock like a starving mouth.
"Oh, baby sister, you're so good!" he winced as he withdrew slightly, then plowed back in. "So fucking good!"
Wendy began slamming her body up and down like a wild, bucking horse. Sweat broke out on her body causing them to slap together like applauding hands. She cried out again with a violent, all-consuming orgasm.
"Fuck me! Fuck me! Christ, fuck me!!!" she wailed, her tones spluttering into his mouth.
Brad began to match her, thrust for thrust. As she pumped upward, he jammed downward, locking his prick deeply into her guts. His cock was being subjected to a grinding, sucking blanket of tight, slick muscle, which made his balls ache with imminent release.
"I don't think I can hold out much longer!" he gasped. "Your pussy feels just too damned good!"
Wendy had visions of hot, glorious wads of cum jamming into her guts. The thick, creamy rivers of fluid that would squirt deliciously into her pussy with grinding force. She again climaxed violently.
"Shoot me full!Christ give me every fucking drop!" she groaned.
Brad couldn't have maintained control over his body at this point for all the money in the world. His cock began to jerk like a flickering neon sign. He could feel the swelling gobs of sperm explode upward, throbbing savagely inside the center of his rock-hard shaft.
"Take it little sister!!!" He screamed into her mouth, his lungs about to burst with fiery, staccato gasps. "Take it in your cunt and suck it in your guts!!!"
Wendy felt the first gushing wads of sperm smack into the back of her cunt, steaming up her backbone with tremendous warmth. The hot load seemed to boil her cunt, bubbling upward to her lungs. She froze in a passionate, crunching orgasm.
Brad began plowing his jism into her slit with brutal force, totally emptying the thick masses of fluid. His exploding balls smacked loudly against the insides of her thighs with each, driving lunge.
"More! God, more!" Wendy groaned, thoroughly enjoying the sensation of having her pussy totally filled with his release.
His jism began to squirt backward, flowing out of her pussy and draining into her asshole. It seemed to burn like acid, giving her new thrills of ecstasy. Again, a thundering smack of release ruptured in her guts with violent force…
"Uuuuuunnnhh!" Brad winced, grinding the last, boiling blob of cum into the back of her cunt.
"Oh, fuck!!!"
They both stopped all movement for a few seconds, trying to control their raspy breathing.
After a short while, Brad began a slow, rhythmic pumping, squirting more sperm out of her spent pussy.
"Do you regret it?" Wendy said finally. "I mean, are you sorry we played a trick on you?"
Brad fondled his sister's breasts, working around the taut nipples with his fingers. He kissed her lovingly, licking his tongue inside her mouth with hungry probes.
"The only thing I regret," he began, "is not doing this before now!"
"Then you'll do it again?" Wendy asked, returning his kisses.
"I'll do it so much, you won't walk right for a week!" he answered.
Wendy gently pushed her brother away and positioned herself between his legs. She held his bloody, slick cock in both hands and began eating the cum with smacking noises. She lowered her mouth down the base of his shaft, touching her lips against his nuts.