"Suck it, little sister!" he groaned pressing his cock against her lips. "Suck my cock and eat all my cum!"
At the same moment she lunged forward, engulfing his gigantic cockhead with her lips, Robin felt an explosive climax thunder into her cunt. It was nothing like the feeling she experienced when she used to dig her finger into her pussy and get a satisfying release before sleep. This was a crashing, electric, all-consuming fireball of pure, raw pleasure. Her entire body began jerking uncontrollably.
"Aaauggghhfff!" she gurgled, sliding her lips lower toward the base of his cock.
The heat of her body, the fire of her first, animal-like orgasm seemed to pour into Paul's body. He grabbed his sister's head with both hands and jammed her face into his crotch.
"Good!" he yelled. "So fucking good! Suck it, you cum-licking little cocksucker! Take it in your mouth and eat it!"
Robin gasped for air, the noise of her inhaling causing a gargling, smacking noise. Then she pursed her lips and jammed her mouth around the base of his prick. His balls turned against her chin with vibrating warmth. She stretched her lower lip out, trying to pull them into her mouth.
"Shit, oh fucking shit!" Paul grunted, crushing his full weight against her face. "Take it, you cocksucking cunt! Take it!"
Robin couldn't believe the iron-hard texture of his cock. It felt like a brick of granite covered with slippery, soft rubber. His cockhead totally filled the back of her throat, and even now it was growing, ballooning to what seemed twice its size! She shivered with delight as the thick round ball pulled upward, slipping over the roof of her mouth, burning against her lips, then slamming back.
Another hot wave of orgasm banged into her cunt with gigantic intensity. The pleasure was almost like some tiny animal in her pussy, trying to tear and claw its way out. The muscles of her slit convulsed tightly, forcing out a tiny stream of hot, frothy cunt juice. Her legs glistened with her release, the juices burning against her flesh like acid.
Paul flipped her over on her stomach and wrapped his legs around her neck, totally burying her head in his crotch. He leaned upward, crushing his stomach against the top of her head and began pumping his cock in and out of her throat with wild, brutal strokes.
"Christ, eat it, you fucking cocksucker!" He panted, knowing that any moment the torment of his furious fucking would explode in an eruption of total release.
Robin certainly didn't know what to expect, but instinctively, she knew that something wild and wonderful was taking place in her brother's wiry, throbbing balls. She reached under and grabbed them. The touch of his wiry, lush growth of hair, coupled with the heady, acrid aroma of his crotch sent her into another spasm of release. As she gagged and spluttered, she felt the base of his prick begin to jerk violently.
"Get ready to suck out my cum, baby sister!" Paul groaned. "I'm gonna shoot your lung full! Suck it all in, you fucking cum-hungry cunt!"
Robin felt a hot gush of sperm splatter into her throat with such power, it was almost like gulping a steaming cup of hot chocolate in one swallow. And then, almost immediately, another glob of cum forced the first further down her throat.
As her mouth filled to over-flowing, Robin began to actually think he would never stop pouring those monstrous wads of jism into her lungs. Pools of cum collected behind her nostrils and squirted out her nose in violent, squishing rivers. Thick, gelatinous globs of hot cream shot out the sides of her mouth, oozing down on her chin and then collecting on Paul's nuts.
She drank as quickly as possible, trying to breathe at the same time. The greasy fluid mixed with her air and boiled in her voice-box, causing a smacking, gurgling noise. But through it all, she knew only one thought: I want more!
In a distant corner of her mind, away from the violent, raw passion that obsessed her now, she saw herself falling, tumbling downward, splashing into a hot, creamy lake of cum. She thrust her head under the surface of the silvery masses of cream, letting it ooze into every pore of her body. She swam in it, pushing large wads into her cunt, into her shitter, washing her tits, and drinking and drowning in a delicious death.
"Take… it… all!" Paul gasped, throttling into his sister's throat with such power, he was afraid he might snap her neck. "Take… it… and… fuck… fuck!!"
The last spewing wad of sperm thundered into Robin's lungs like a burning poker. Then her brother stopped all movement. After a few seconds, he began relaxing, allowing his sister to pull away.
"Oh God, that was the best I've ever had!" he moaned, stroking her hair. "Thanks!"
The sound of his voice was like a low, growling wind. His hard, muscular body the essence of life itself Robin didn't want to open her eyes, to come back to reality. She wanted to stay between her brother's legs for all eternity, sucking and licking his wonderful cock. Eat his sperm forever.
"Hey, little sister," Paul said, gently nudging her away from his prick, "you ever gonna stop?"
Reluctantly, Robin pursed her lips and pulled upward, releasing a trapped wad of hot cum that burned against her tongue like boiling cream. She totally relaxed the muscles of her throat, and trying to visualize what it must look like, saw the oozing glob of sperm sink slowly into her stomach. She gurgled a moan when she had drunk it down.
"Oh, thank you, Paul!" she whispered with passion. "I never knew it could be this wonderful. Anything could be this wonderful!"
"Well, it was pretty wonderful for me too," he said, puffing her up into his arms.
"Can I touch you, kiss you?" she asked, like a small child asking permission to see the circus.
"Sure," Paul answered. "Do whatever you like."
Robin couldn't believe the total maleness, the fantastic masculinity of her brother. She began stroking his muscular arms, running her fingers over his shoulders, down to the hollow of his throat. She then kissed where her fingers had been. Not until she had touched and kissed every square inch of his body, did she say anything.
"This all seems like a dream. A wonderful dream!" she whispered, nuzzling her face against his chest. She could hear the steady, rhythmic beat of his heart. Each pulsating throb seemed to surge into her own body, wrapping her in a womb-like blanket. "So wonderful!"
"You know," Paul said, gently running his fingers against his sister's cheek, "I thought I would feel guilty about doing this, but I don't!"
The idea of guilt was as foreign to Robin as anything could be. She snuggled up against her brother and her tongue darted out, touching his pectoral muscle, washing the tiny nipple.
"Will you fuck me now?" she whispered.
She felt her brother flinch. "Now that's another thing," he said finally. "I don't know if I could do it."
"Will you try, at least?" she asked quietly.
"Are you… that is… have you…" Paul began.
"I'm a virgin, if that's what you're wondering," Robin said, turning her head to look into his eyes.
"Oh Christ!" Paul said. "The first time is often painful. I don't know…" His voice trailed off.
"Have you fucked many virgins?" Robin asked.
"Well, a few," Paul answered, somewhat embarrassed.
"Then you'd know how to do it right," Robin said, her innocent logic as pure as her body.
Paul looked at his sister as if looking at a woman for the first time. He touched her skin, then pulled his hand back, as though he had grabbed a hot coal. His lips began to quiver. He didn't want to hurt his sister. And she was so tiny, so fragile-looking. For once, he hated his thick, monstrous cock. He might rip her cunt into a bleeding mass of hamburger, and he knew once he started, all the Gods in heaven couldn't make him stop. He had to say no. He had to!