"What the fuck?" Andy still couldn't believe what was going on.
"Just relax, and enjoy," Tess said. "Didn't you ever dream about fucking me? Be honest. Didn't you ever want me to give you a blow-job?"
Hearing her say the words excited him all the more. His cock throbbed a quick response. He chuckled. "You gotta be kidding!"
She pulled his shorts down over the huge bulge of his expanding prick. She watched as his dark-blond cockhairs came into view, then the thick tube of his prickshaft, and finally the huge bulbous knob of his cock. When the waistband inched down even farther, his cock sprang up forcefully, slapping noisily against his lower belly.
"Ooooh, Andy!" Tess cried approvingly. "What a gorgeous hunk of cock!"
She eyed its great size, the giant cockhead thudding wildly against his hairy bellybutton, the full girth of his prickshaft throbbing with intense excitement.
She pulled the shorts even lower and eyed his massive balls, huge and thick-skinned and dark and hairy. She hoisted her ass off his legs and pulled his gym shorts and jock down to his ankles, where he instantly kicked them off. Her hand came back up to his crotch and cupped his weighty balls.
A look of awe spread over both their faces as she weighed his balls. Her fingers worked restlessly, stroking, squeezing, stretching and rolling. Then she brought her hand up a little higher and wrapped her fingers around his cock.
His prick twitched instantly, and as she lovingly squeezed it and lifted it off his belly, she ogled the clear drop of pre-cum oozing out the winking piss-slit. Her eyes flashed from his cock to his face. And since he showed no signs of resistance, she lowered her face to his cock. She stuck out her tongue and lapped off the slick drops of jizz coating his cockhead.
Andy flinched and shuddered. He thought he would come as soon as he felt her hot mouth on his cockhead. His heart was beating fast and his mouth was dry. He simply lay there and watched his sister's mouth wrap around the head of his cock.
He felt the wetness and heat of her mouth as she sucked his cock. The temperature in his prick was rising rapidly, and his knees quivered. His guts rumbled with excitement and he felt his balls tighten up in his crotch as she pulled more of his crazily throbbing cock into her mouth.
He swallowed hard.
"Oh jeez, Tess," he said, his voice trembly. "Oh, God. I'm gonna shoot. Suck it good, now, Tess. Suck my cock hard. I can't hold back."
Tess' level of excitement doubled in a second. Her pussy dripped in anticipation of tasting her brother's hot, salty cum as it blasted into her mouth. She wriggled and squirmed, her tits hanging free from her half-opened nightie and flopping around on his chest.
She started pounding Andy's cockshaft with a tight fist, eager to have him shoot his load. Her mouth worked up and down the upper part of his great cock as fast as it would go, feeling the giant cockhead press into her throat. Her other hand still toyed with his balls, her nails scraping his tender thighs and pressing back into his asshole.
When she felt his body tense up and quiver, she knew she was about to receive the rewards of her efforts. She bounced all the more frantically on his legs, sliding her ass to one side so her soaked pussy could rub up and down his shin. She clutched and pumped his throbbing cock all the harder, and prepared to accept his plentiful spurts of cum.
Andy suddenly clutched the sides of her head and held her in position while he fucked his cock up into her greedy mouth. He was too strong for her, and she instantly realized it was more like he was fucking her face than she was giving him a blowjob. His body started to buck and churn, and he grunted uncontrollably in time with each blast as his cock suddenly erupted into her throat.
Tess squealed and squirmed with glee, welcoming blast after blast of his tasty spunk. She wrapped her tongue more tightly around his cockshaft, feeling it pulse as his cum squirted up from his balls and shot into her mouth. Her own orgasm wracked her body with delightful quivers as her pussy flooded his shin with abundant outpourings of her warm cuntjuices.
Andy started to jerk unevenly as his blasts of cum into her mouth started to slow. He collapsed to the bench with a wet slap as his cock shot the last of its cum. He released her head, and Tess pulled her mouth up.
She licked and sucked his prick eagerly, greedily trying to suck up as much of the stimulating fluid as possible. She squeezed his balls, forcing up every last drop of his tasty cum she could find. Pulling her mouth off his flagging cock with a pop, she swished the last of his load around in her mouth, humming delightedly before swallowing it down to join the cum already warming her belly.
She smacked her lips and grinned as their eyes met.
"Aaaahhhhh," she said, beaming.
"Delightful." She flopped his limp, sticky cock back and forth on his thighs. "Well, how was it?"
"You gotta be kidding! The best exercise my cock has ever had!" He glanced down to the spot where she was still rubbing her drenched cunt slowly up and down his shin. He grabbed her and hoisted her upwards. "Now it's time to give my tongue a workout!"
Tess giggled and shook her shoulders. A broad grin of lusty excitement graced her lips. She nuzzled her damp pussy into Andy's shin to indicate that she had no objections.
Andy pulled her toward his face, but very slowly, and only halfway. Their eyes were still locked in a deep smoldering stare saturated with lust. Andy's eyes eventually bobbed downward and caught the sight of her tits coming into view as he hoisted his sister upward. He rested her wet crotch on his lower belly, and as he removed his hands from under her armpits, he swished her sheer nightie to the floor.
Her tits revealed, he very gently cupped his large beefy hands over them. He rotated them as he squeezed, then pressed them against her ribs. Closing his grip, he snared the long hard nipples between his knuckles and watched as he pinched and pulled his sister's tits. Her nipples were like tiny thumbs, jutting out from the dark, rose-colored circles of her tits, and they made his eyes widen with delight and his mouth hunger for a sampling.
Lifting his head to her chest as he removed his hand from her left tit, he opened his mouth and flicked his tongue lightly over the protruding nipple. He caught it between his teeth and bit and rotated the erect nipple very lightly. A sharp intake of air filled Tess' lungs, causing her tits to expand all the more and mashing more of the large, firm mounds into Andy's face and hand.
Andy opened wide and pulled the gorgeous fleshy mound of tit into his mouth. He sucked hard, as though he were trying to pull her tit into his throat.
Tess was surprised. She inhaled deeply and excitedly again, feeling renewed dribbles of excitement trickle out of her cunt.
She shuddered, her shoulders shaking again.
"Oooooh, Andy!" she gasped, her voice shaking slightly. "Oh God, that feels good! My tits really ache!"
She rotated her shoulders and arched her back in a slow undulating motion, mashing her one tit into his mouth all the more, while her other tit pressed into his gripping hand. She clutched the back of his head and pulled him closer.
"Your mouth feels so good on my tit!" she cried. "Mmmmm, yeah! That's really turning me on! I can't stop shaking! Aaaaah!"
Moans of delight rumbled up from deep inside her as she ground her drenched cunt over the thick patch of wiry hair carpeting his lower belly. She could tell her pussy was getting his stomach wet and warm, and that thought excited her all the more.
Tess could feel the flames of her passion rising higher. Her head was swimming. Her whole body, inside and out, was being elevated to ever higher plateaus of sexual excitement by the wonderful feeling of Andy's warm mouth wrapped around her tit and the tip of his stiff tongue flickering ever so gently over her nipples.