Jerry said in a cracked voice, "Look, there's a time and place for things, and this isn't it as far as you're concerned. Nan and I were having a… serious discussion, and we don't need…"
Shari stepped over to the lounge chair before them and plopped defiantly into it, determined not to be shunted off. "In case you haven't notice, Jerry Wilson, I'm a grown woman! I know all about your little 'discussions', and I don't care if you fuck or not. But I won't be treated like a child!" Jerry's face momentarily went slack with disbelief at this uncharacteristic outburst, then contorted as he blurted, "Bullshit! If you think you're going to plant your ass there and watch."
"Oh, let her stay."
Nan's unexpected interruption stopped him cold. He twisted around to face her. "Huh?"
To his surprise, she was smiling, a strange expression on her face as she met Shari's gaze in mutual understanding. "She's right, you know. It's no secret about us. Shari knows it all and… well, this is her house, too. I guess she has a perfect right to stay if she wants to."
His face fell in frustrated disappointment. "Look, I thought we had something going…"
"Oh, we do." Nan's sharp blue eyes turned from her sister to him, with an odd, speculative look. "But since there doesn't seem to be any point in hiding it anymore, why spoil things now? We were just getting started."
Without warning, the hand holding her blouse together fell away, letting it flap open once more. Stunned, Jerry watched as she reached out and squeezed his rock-hard crotch without hesitation, fingers stroking its massive length.
It all happened too quickly for him to take in.
One moment he and Nan were getting it on together just like always, and the next – the next, here he sat with her hand on his cock and her sister Shari looking on with a pleased expression.
"Jesus!" he gasped, reacting to Nan's touch. "This is crazy! We can't do anything in front of her!"
"Why not?" Nan's lips flicked in a sexy smile as she strummed his stiff prick. "After all, you're the one who wanted to have fun, aren't you? And Shari doesn't mind watching. Do you, Shari?"
Shari shook her head, pleased at Nan's reaction. They were sisters, too close to keep secrets from each other for long.
"Go right ahead," she urged once more. "I'll just sit here. You won't even know I'm around."
"Like hell we won't!" Jerry replied angrily. But Nan's fondling hand had his cock pulsing painfully, and even the prospect of having her sister watch wasn't as inhibiting as it at first seemed. In fact, it might be fun. He could put on a show that would have her running from the room!
With that thought, he shrugged a grunting assent. "Okay, if that's what you want. I'm not one to argue. Especially when there are better things to be doing."
That decision made, he reached out with blatant boldness and grasped Nan's tits, half-expecting a shacked reaction.
However, neither of them minded in the least.
Instead of being shocked, Shari watched spellbound as he began to knead her tits, running his fingers over the cotton bra cups.
"Umm, that feels good," Nan groaned as the last twinge of shame faded. "But I'll make it even nicer."
As if totally unaware of a spectator, she shrugged out of her blouse and unsnapped her bra, shedding it as well.
Jerry sucked in a breath as her tits sprang free, bobbing and jutting, two twin, pink-tipped spires. She had the biggest pair of tits of any girl he had dated, and their sheer hugeness made his throat tighten. Hardly sagging despite their weight, they thrust out at him as if aching for attention. Their bumpy areolas were the largest he'd ever seen, at least the size of dollar pieces and a burnished shade of pink that was almost brown. Exactly at their centers, perched like two soaring mountains, jutted the inch-long buds of stiffness that were her nipples. They stood out hard and pebbly from her big, creamy mounds, their tips inflamed. He couldn't resist catching those long firm pellets between his fingers and making little milking motions that had her gasping.
Shari watched as he fingered Nan's tits. She could feel her own small nipples spearing out against her tee shin in response.
Unashamed, Nan groaned and squeezed Jerry's crotch hard, laughing huskily as he tweaked her rigid nipples.
"Ohh, that feels good… but you know what makes them feel really nice. Let's show Shari what I mean."
Abruptly she slipped from Jerry's grasp and rose to her knees, her own hands going up to cup her tits and push them at his face.
One taut nipple brushed his lips, and he reacted instinctively. His mouth opened, and the next moment Nan shoved her tit to his face, panting joyfully.
"Now suck it, ohh, oh, yeah, that's it, suck my tit nice and hard baby."
Unable to resist her urgency, Jerry closed his lips over her stiff nipple and began to suck noisily, not pausing even when her hands started working frantically at the fastening of his jeans.
Hardly daring to breathe, Shari looked on as Nan unsnapped and unzipped his taut jeans, then dove into them and drew out his prick.
The teenager gaped at the massive swollen shaft of cock that sprang up in her sister's hands. Though not quite as big as her daddy's luscious prick, Jerry's cock was at least eight inches long and so thick that Nan's slender fingers looked tiny as they glided over its veined length and dipped down to cup his heavy, sagging balls.
He gave a rasping moan as she hefted his studded ballsac in one hand as the other pushed his jeans down, working them to his knees. Dimly Jerry knew that she was purposely showing him off, giving her sister the complete view of his rigid prick and cum-filled balls. He didn't mind a bit. In fact, the knowledge that Shari was watching turned him on even more. If she really wanted a show that bad, he was only too willing to give it to her.
At that thought, he pulled back with a knowing grin. "Hey, I don't mind putting on a show, but I'm not going to be the only one. How about you?"
Nan hesitated briefly, aware of her sister's gaze. Then she shrugged. "Okay. I guess that's the only fair thing to do."
Still grasping his cock, she reached down and began to peel her already-unfastened slacks the rest of the way off.
Shari's pussy creamed harder as her sister's wet-tinged cunt appeared, hovering just inches from Jerry's helmeted cockhead.
"There," she said, squirming out of the slacks entirely. Totally nude and turned on at having a spectator, she asked huskily, "Is that better? Or maybe this will help."
Nan bent down, placing her lips against the fat, knobbed prickhead that flared put above her pumping fist.
Jerry uttered a little sound of pleasure and tangled his hands in her long, glossy hair, urging her on. "Yeah, that's just right. Now let's show her how you really like to take my cock. Suck it, baby. Wrap your lips around my prick the way you do in private – oh, yeah!"
Shari gasped as Nan's full lips glided over his red prickhead and back again, making his cockhead slick with saliva. Then her tongue darted out, teasing back and forth over his cock helmet and working its tip across his small pisshole to taste the droplet of cum that had collected there.
She tongued Jerry's cock until he was twitching on the floor with need. Then her lips parted again, slowly engulfing his stiff prick until half its length had vanished, reappearing in glimpses as she moved her heads back and forth in a fucking motion.
Shari licked her lips, practically tasting that prick as if Jerry's cock was filling her own mouth as well.
She watched avidly, letting a hand sneak between her tightly closed thighs and wedge at the wet crotch of her cut-off shorts as Nan knelt on all fours, letting the suction of her pumping mouth hold Jerry's cock now. From where she sat, Shari could just see the glistening slash of her sister's jutting ass and cunt, both slick with cream and pussylips flaring out as she hunched back and forth, her whole body tuned to the cock in her mouth as if Jerry was fucking her all the way through.