Taking his hand in hers, she communicated her own desire. They lay down on the sofa, the daily scene of lovemaking. May's eyes fastened greedily on Sid's ever-growing prick.
"Oh, Sid," she breathed, "June was right… it's really beautiful!" the thirteen year old complimented. And without another word, she reached towards him and cupped his expanded cock in her two hands. He jerked up off the sofa at the electrifying touch of her cool fingers on the bloated sensitive periphery of his penis and moaned as he felt her run her fingertips along its length. He felt her nail scrape the bulbous head and jab momentarily at the tiny glans opening from which he knew lubricant was already seeping. Her long slender fingers toyed with the pulsing, webbed underside, testing the resiliency of the sperm-carrying tube, and trailing along till they came to the flaccid, wrinkled sac of his testicles. He hissed out a harsh groan at the tentaclelike fingers gently squeezed his testes, sending chills shooting through him.
May was still staring at the rock-hard cock, as if fascinated by the result of her expert manipulations, and now she lowered her lovely, dark head towards his groin and her little tongue flicked out and licked lightly at the grotesquely distended pillar of masculinity.
"Oh, Christ…" he muttered, turning his head from side to side as he felt the first warm wet sensation of her tongue coating his prick with hot saliva. She ran it up and down its full rigid length, accustoming herself to every inch, every crevice of it, probing at the base, rooting among the wiry tufts, searching for the very foundations. Then she painted his balls with her hungry mouth, trying to catch as much of the wrinkled flesh as possible.
Sid writhed on the sofa. To lie there, and be sucked off by this thirteen year old girt, yes, that's what she was! But perverted as it was, it felt oddly natural having his cock sucked… and sucked damn well… by the exquisitely beautiful little sister of his teenaged lover. And it felt so good, so Goddamn good!
May's lips closed thirstily over the now-enormous head of his cock and she gasped aloud as she formed a firm circle with her mouth about the rigid rod of flesh just below the head. Then she squeezed on it, while her tongue flitted in and out of the tiny slit at the head, noting that spasms of profound pleasure were shaking their tutor's body. Her lips slipped farther down the moistened rod until the head was pushing against the back of her throat. But still she kept on taking more and more of the huge organ into her mouth until it reached the top of her esophagus! Mmmmm, she wondered in the swoon of ecstasy, can I take it all in without gagging! Gosh, I've only done this once before.
Raising his head slightly, Sid saw her bend over him on her knees, a faint sheen of perspiration coating her face, as she blushed from the sheer exertion of what she was doing. But there was a look of complete joy on her face as she worked over him and the sight of his purple cock disappearing between the smooth oval of her rosey lips, increased his pleasure a thousand-fold. Then she released his prick for a moment and began to lick his badly churning balls once more with great sweeps of her tongue, tickling the ridge between the testes and then dropping below to the crevice of his buttocks, teasingly moving lower, pushing his legs up and back and opening the cheeks of his buttocks with her thumbs. He gasped in surprise as he felt her pointed tongue dabbing snakelike at his anus and chills of forbidden pleasure raced up and down his spine. She stiffened her tongue until it was as rigid as buckram and began to probe harder at his untested sphincter, until his loins were threshing about frenziedly in surprised delight.
Then, once more lowering his legs back down, she returned to his prick, which was huge and bloated, throbbing with an intensity all its own. Again she enclosed it in her mouth, establishing a slow sucking rhythm by sliding her soft ovaled lips along its almost never-ending length right down to the base, and then slipping back along its palpitating surface until just the head was still imbedded in her mouth, while at the same time, milking his balls in almost unbearable time to the oral fucking she was subjecting her mouth to.
Sid felt as if his lower torso was on fire. Great hot flames were licking at his loins and his sperm were rioting around in his balls, pressuring for release. His head was spinning and he ground his teeth in anticipation of the shattering orgasm he knew was coming and at the same time, willing it away for just another moment of ecstatic pleasure.
"I can't trust either of you for a moment!"
The voice rang through the door, and Sid sat bolt upright his eyes wide opened his mouth hanging like broken hinge. June had found them!
She came into view, wearing only a towel, sarong-style, which just covered the twin mounds of her breasts and barely covered her pubis. He knew it was stupid time to think about it, but Sid felt he had never seen her looking so appealing… her legs still moist and her hair wisping from the steam of her bath.
"I see you two have the lesson off to an early start!" June said with a sarcastic note.
He saw her eyes fall on his ponderous prick and was self-conscious at the way it stuck up like a flag, waving blue and purple in the sunlight, a drop of cum from his just-thwarted orgasm glistening in the slit at the top. May knelt there, looking at her sister, her hand still squeezing at his balls.
"How could you do this to me, May?" June asked, a feigned, pained expression on her face.
"I just couldn't help it, June…" May answered in a low voice. Sid didn't know where to look next. He felt mortified at being found like this by June and was afraid she wouldn't understand that he had thought it was her at first.
"Look, girls…" he began in a conciliatory voice.
"You stay out of this!" they chorused together, making Sid feel like a chastised schoolboy.
"What are, we going to do?" the older sister asked.
"I guess we'll have to share him," the younger Dunlap said in practiced reply.
With that, June let her towel drop from her body.
"What are you two talking about?" Sid stammered. He'd already been planning to slip away as soon as possible.
He was answered by a burst of girlish giggles and then he felt a hand against his chest and he was pushed over backwards on the carpet. Chaos ensued for a moment until he felt his cock become warm and moist again, the hypnotizing slipping of a warm buttery mouth down over its almost full length, the gently insistent milking of his balls. He was just about to raise his head when he felt a warm moistness over his face, a weight on his chest, and then his breath was cut off for a moment. Opening his eyes, he looked up and saw a soft dark forest, surmounted by a flat smooth belly, rising to upswept breasts proudly pointing. Her head was thrown back and he could just catch a glimpse of a black mane. It must be June, he thought, or is it May?
She settled back on his chest and then closed her thighs around his face, easing the damp pinkness of her pussy over his nose and mouth. Heat was rising in his groin again as May, or was it June, continued to lick along the underside surface of his cock, slavering lovingly over its growing girth, jerking his scrotum with a stormy hand. The sweet feminine smell of the pink furrowed pussy on his face assailed his nostrils and his own warm breath returned, cunt-scented, to add to his fervor.
He stabbed out with his tongue and began to emblazon trails of fire in its warm hair-lined folds, bringing gurgles of pleasure from the girl above. He probed with his tongue at the satiny softness of the hair-lined outer lips, feeling their swollen fleshiness, biting at their pliant edges. His tongue found the crinkle-edged inner lips, tiny and ragged, and taunted them mercilessly. He came upon the burgeoning button of her clitoris, already a hard bud, and holding it firmly with his teeth, licked at it relentlessly with his laboring tongue, feeling it growing and expanding under his oral lashing, wringing shrieks from the passion-ridden girl, who was twisting around an his face, trying to escape the maddening ministration. His tongue roamed at will, dabbing at the luscious chiffony flesh, until it found the dark, private sensitive opening to her body. It darted inside, and he could feel her velvet cunt walls contracting, opening and closing on his tongue. He could taste the nectar-like juices and seepage of her downy pussy, which dripped down around his tongue and fell into his mouth and dribbled down his chin. She was rocking about on his face, his knees clenched over the crown of his head. All along his face, he could feel the smooth silkiness of her inner thighs and the soft curliness of her pubic hair tickled his nose.