He began ramming her so hard, her head smacked against the headboard. His balls slipped up and down her thighs, almost grinding into her shitter as he penetrated deeply into her cunt.
Gina's eyes were glazed over, her mouth slack. A low growl of a moan escaped from her lips in a hiss as Paul slammed his full weight into her crotch. Robin didn't think it was possible to live through such a tremendous, brutal assault.
"Oh God, don't ever stop!" Gina grunted, each word punctuated with a raspy moan. "Fuck me for a million years!"
Robin turned her attention from Gina's face to Paul's ass. His tight ass cheeks bobbed back and forth with such speed and force, she could almost feel the thrusts from where she was standing. Then all at once, he too, froze, his body ribboned with the outlines of his taut muscles.
"Oh shit, baby, take it!" he grunted, slamming upward, moving the girl up the bed with his power. "Take every fucking, hot drop in your guts!"
Even from the distance, Robin could see the base of her brother's cock begin to jerk and throb. His cock seemed to grow even larger, thicker.
"Oh, that's so good!" Gina moaned. "So hot and creamy!"
Robin saw a thick trickle of milky sperm splatter out of Gina's cunt and ooze onto her brother's balls. It looked so rich and creamy it made her throat burn with desire to taste it!
"Uuuuuuuhhh!" Paul groaned, jamming the last of his load deeply into Gina's cunt. "Oh baby!"
Robin's fervor only increased when she saw her brother grind the base of his prick against Gina's cum-stained pussy opening. But her excitement grew tremendously when she saw her brother pull away, his cock flopping deliciously against his stomach. Thick wads of cum covered his prick, reflecting the light in the room.
"That was so good!" Paul said, lying on his back next to Gina.
"It's not over yet!" Gina whispered, sitting up. "I'm going to suck you dry, you big stud!"
She rolled over and knelt between Paul's legs. Smacking with anticipation, she lowered her face to his crotch and began licking up and down the underside of his cockshaft. Wads of creamy sperm clung to her lips and chin as she gave him a thorough wash job.
"You like that stuff?" Paul asked, jutting his hips upward.
"Oh God, yes!" Gina gurgled, licking his cock clean. "I could drink gallons!"
Her feelings were the same as Robin's, as Robin watched the girl hungrily lap down the hot, milky sperm. But when Gina dug her fingers into her cunt and pulled out a gelatinous wad of jism and smear it all over Paul's nuts, then lick it off, Robin thought she would die from excitement.
"Oh Paul, I want you too!" Robin said, not really caring if she was heard or not.
She ran back to her room, still fingering her pussy, feeling the empty ache in her guts become unbearable. Tears filled her eyes as she closed the door to her room.
"What was that?" she heard Gina say.
Robin heard nothing after that. She ripped off her clothes and lay on her bed, her legs spread wide. She dug her index finger into her churning, boiling cunt, feeling a hot spasm of release thunder into the back of her pussy.
"I want you Paul," she said after the vibrating climax had subsided. "Oh God, I want you so bad!"
She finally fell into a fitful sleep, her dreams were visions of warmth. She murmured in her sleep: "I want you, Paul!"
CHAPTER TWO
"Robin?" Paul said. "Are you all right?"
Robin opened her eyes and saw her brother standing next to the bed. She glanced down quickly and was relieved to note that she had pulled the bedspread over her nude body.
"I'm fine," she said, her voice shaken. "Why?"
"You kept saying, 'I want you, Paul.' I was worried."
God, he was handsome! she thought. She looked into his clear blue eyes and was glad she was lying down. Otherwise, her knees would have certainly buckled.
"I'm fine," she answered with a mutter.
"Well, I'm glad," he answered, giving her a strange look. "You sounded so… well, urgent."
Robin knew it was now or never. I'm going to suck your cock tonight, and even if you my no, somehow I'll do it anyway!
"If you're fine, I guess I'd better get back to bed," Paul said.
"No!" Robin said. "Don't go!"
He gave her a quizzical look. "Are you sure you're okay?" he asked.
"I could be better," she said, sitting up. The sheet dropped, exposing her young, taut breasts. "Or, you could make it better!"
Paul was obviously stunned. He looked at his sister's tits as if mesmerized. He opened his mouth to speak, but only grunted.
"What the hell do you think you're doing?" he asked finally. "Cover yourself up!"
"Don't say no, Paul," Robin said quietly. "Please don't. I think it would kill me."
"Say no to what?" he stammered.
"I saw you and Gina this afternoon," Robin said in a way of explanation. "And I want it."
"You, what!" Paul said, flinching.
"I want your cock," Robin whispered. She closed her eyes, waiting for a slap in the face, or a brutal answer. "I want you, Paul," she added, almost smelling the silence in the room. "I need you."
"But you're my sister!" Paul said, sitting back on the bed. "I couldn't… I couldn't…"
"Then let me do it," Robin said, placing her palm against his crotch. "Please?"
In spite of himself, Paul felt his cock begin to grow hard. He looked at his little sister. God, not little anymore! Why is it I haven't noticed until now, he asked himself? God, those firm, ripe tits! The long blond hair, that sweet, angelic face!
"I don't think so," he said. His tone was, "Yes, I want it too!"
"Show me your dick," Robin begged. "Let me touch it, please?"
Confused, but excited, Paul unzipped his jeans. His large, pulsating cock flopped out, bobbing against his stomach.
"Baby sister, you don't want to do this," he said, resignation in his voice.
"Yes I do!" Robin said, clutching the thick shaft with both hands. "Oh God, yes I do!"
She leaned over and clamped her mouth around the thick, round cockhead. It was everything she thought it would be! Hard and yet soft, deliciously fragrant and heady. She pulled his foreskin down and darted her tongue around the indentation below the end of his prick. Her senses were immediately inflamed by the flavor of dried cum and piss. She moaned a soft gurgling sound.
"Please don't!" Paul whispered. "Robin, don't do this!"
Heedless of his request, Robin gobbled this long, hard dick hungrily into her mouth. She almost gagged as the round ball of his prick stabbed against her tonsils, but she didn't care if she choked to death. All she wanted, was to have that beautiful, delicious prick embedded inside her mouth.
"Please, Robin… don't… oh God, Robin," Paul moaned, unable to believe his sister's hot, sucking mouth. "Please!"
Robin cupped his firm, cum-filled balls, gently rolling them around on her cheeks as she had seen Gina do. They vibrated with life, filled with a thick, lava-like load of creamy cum.
"I will never stop!" she gurgled, her voice-box pierced by his throbbing dick. "Never! Never! Never!"
Paul looked down at his sister. God, she was good-looking! He reached out to touch the round, upturned breasts, then stopped. He closed his eyes and threw his head back.
"Robin, please don't do this," he said. "Please… please… oh, fucking Jesus H. Christ! God, suck it, you fucking cocksucker!"
Robin was more than surprised when Paul's enormous cockhead slipped forward, scraping against her teeth, the slapped against her nose. She looked up and saw her brother fumbling with his clothes, dancing on one foot.
"Baby sister, you asked for this," he said, tearing his shirt off. "And by God, by fucking God, you're going to get it!"
Robin could hardly wait. But then, she didn't have long to wait at all. In record time, Paul shucked off his clothes and bounced on the bed, jamming his knees against her shoulders. He held his prick in both hands, aiming it toward her mouth. His cock was so hard, so engorged with blood, the movement was painful.