Well, Adam can't be far, considering all the noise she made...

Even though Sarah's breath still came in excited gasps, she could hear barely muffled moans from the hallway in front of her room. _Of course _Adam had heard her and not been able to keep himself from masturbating. A mischievous grin spread across Sarah's face. She knew exactly how to kill two birds with one stone. Or rather, how to fuck one slut with three dicks.

Getting up, her throbbing nipple dicks bobbed around wildly, splattering pre over the mess already on the floor. She'd have to get her slutboy to clean later. But first...

Moving towards the door, she noticed that Adam seemed to be lost in the throes of pleasure as his moans didn't abate at all. Her smile widened into a grin. Oh, this would be fun! Throwing open the door, Sarah almost hit Adam in the head. He was sitting on his bare ass beside it, leaning on the wall with his head against it. His left hand was knuckle-deep in his twat, stirring up its juices, while the right was groping and pawing at his breasts.

When he saw his sister standing before him, two dicks twitching and drooling precum, the third slowly hardening, he did not wonder how this was possible. All he cared about was getting them inside him - and make them explode their sweet, salty juice into him. In a flash, Adam was up, salivating at the thought of not one, not two, but three drooling cocks for him to suck on. But still, he hesitated. Sarah had not given him permission yet...

But he didn't have to wait long at all. Sarah grabbed her dicknipples at the base and wiggled them around. Her "C'mon, I know you want it" was the only encouragement Adam needed. Diving forwards, he crammed all 7 inches of her left nipple into his throat and began sucking, tongue slavering over the underside of the cock. His left, still wet from his juices, grabbed Sarah's enlarged tit to hold onto something, his right taking on the pussy duties.

"Ooooh yeah, god that feels incredible!" Sarah moaned, grabbing Adam by the back of the head and pressed him deeper into her tit, "Keep it up, slutboy!" Her right hand meanwhile had begun jacking of her right nipple.

Adam's muffled groaning made her whole boob shake. The sensations where enough to drive Sarah wild, and within seconds, the hardened length between her legs was pressing into Adam's thigh... which felt considerably softer compared to before. Eh, more cushion for the pushin'. Adam noticed, of course, and guided Sarah's cock onto his pussylips, slowly sliding his crotch over Sarah's sweltering rod. Of course, he wanted it inside himself, but with a buffet of three cocks to choose from, he wanted to pace himself.

"Hnnnnaah... The slutboy learns, huh?" Sarah said, hips bucking into her brother's thigh gap. Adam was delighted how much pleasure the praise gave him and redoubled his efforts on Sarah's left tit and began bobbing his head. This barely moved the cock in his mouth, but the jiggling in her breast made Sarah moan appreciatively. Rearing back as far as he could without losing contact with the heavenly, veiny meat between his thighs, Adam managed to move the dicknipple out of his mouth save the head and began sucking hard, cheeks caving inward, tongue dancing over the swollen head.

As Sarah's moans intensified, Adam knew she was close - as was his sticky reward. And yes, within seconds, Sarah's left dicknipple exploded into his mouth, filling him with sticky goodness. He sucked eagerly until the last blast was spent, reveling at the warmth that spread out from his stomach, and then smiled up at Sarah, small globs of cum still sticking to his lips. Sarah's face was flushed with arousal, but she nodded her head towards her other tit.

Adam's eyes went wide. While her left nipple was spent and softening slowly, her right was hard as diamond, veins popping out and pre was drooling out of it like a faucet. Taking her other tit in both hands, he licked up the stream of pre that had run all the way down her titshaft and boob, beginning at the base of her chest. When he reached the tip, Sarah was moaning as if in heat and her cock looked ready to burst. Adam planted a wet kiss on Sarah's nippledick and was instantly rewarded with her second tit-orgasm, the lurching cock spraying jizz all over his face.

Closing his eyes, he enjoyed the sticky substance splattering all over him, and after Sarah was done, he scooped the hot cum up to slurp it down noisily. But Sarah still was not done completely. One more cock was waiting for Adam's attention. Grabbing his ass with one hand, Sarah used her other to direct her last ready cock into Adam's waiting cunt. Feeling himself spread open, Adam moaned and wrapped his arms around Sarah's neck.

"Nnnnaaa... Yes, give me your fat dick, split me in two!" The double dose of Growth-X cum had undoubtedly had an effect on his voice. His masculine tenor had been replaced by a husky, sultry timbre that would make most men cream their pants just hearing it. In fact, hearing this pornstar voice from his own throat thrilled Adam to no end. Grabbing Adam's enlarged posterior with both hands, Sarah began jackhammering away at his squelching snatch.

"You want it, slutboy? Then take! It! All!"

With every thrust, Adam produced a high-pitched "Ah!", rocking his hips to meet his sister and be penetrated even deeper. He wrapped one leg around Sarah's waist to give her better access. His nipples slid across her semi-hard nipple cocks, their breasts bouncing wildly, little electric shocks running from Adam's chest directly into his very core.

"Ah... ah... give it to me, I'm so close, do me harder, give it to meeeEEE!" It seemed the new voice had given Adam a new like for dirty talk, a development Sarah most definitely enjoyed. She intensified her fucking, Adam's boobs bouncing almost enough to hit him in the face, squeezing his butt roughly.

"Oh god yes, like thaaAAAH!" Convulsing wildly, Adam came, his pussy clenching and twitching around Sarah's cock, milking it for all it was worth. Sarah, already on a hair trigger after two chest climaxes, did her best to hold out, but it was futile: With a mighty throb and one last thrust, she shot her load deep into Adam. The feeling of hot cum flowing into him only intensified his orgasm. Hugging his sister tight, he shuddered with bliss, gently rocking his hips around her softening member.

After savouring the afterglow for a few minutes in their tight embrace, they separated. Sarah noticed that the triple dose of her cum had affected her brother much quicker than most other loads so far - his face was decidedly sexier, with higher cheekbones and pouty lips, while his hips and thighs could only be called voluptuous now.