Jeremy couldn't believe it, but Jackie was humping his large meat into his bowels. It hurt like nothing he'd ever felt before; the pointed tip jabbing into his tender flesh, the rough sheath rasping against the walls of his anal cavity, and then, the large knot expanding his already stretched opening. And the humiliation of Francine looking on, cheering the dog's activities on, and the realization that he had a hard on! He wasn't a fag, he didn't even want the dog to fuck him, but he'd caught Francine giving the dog a blowjob, and coaxed her into allowing him to touch her. They'd finished their liaison with her hot, wet pussy wrapped around his brotherly dick. After he'd dumped his wad into his sister's cunt, she'd claimed it was rape, and she'd tell their parents, unless he let the large German Shepherd to fuck him.

The dog's nails dug into his tender back, and with yelps and snuffs, Jeremy felt the hot slippery fluid pump and spew into his guts. The dog tried to dismount, but the large knot prevented his movements. He growled and whimpered, but they were locked.

"How's it feel?" Francine taunted.

"Like I got to take a shit," Jeremy choked.

He didn't want to cry in front of his sister; she'd never let him forget it. She smirked at him.

"You always get a hard on when you shit?" she asked.

"Fuck, no!" Jeremy grunted.

The knot receded, and Jackie dismounted Jeremy. Clear dog semen dribbled out of Jeremy's aching hole. His blond headed sister watched as a pool of dog come formed a small pool on the forest floor between Jeremy's spread knees. She looked at Jeremy's gaping rectum as the last driblets slid out, and dripped from his swinging ball sac. She knelt behind him and licked the delicious fluid from the sac. Jeremy jumped when he felt his older sister's hot tongue and mouth on his balls. His cock jerked as she savored the taste and texture of his balls, then she wormed her mouth around to take the head of his throbbing cock into her mouth. He relished in the sensation for a moment, then pushed her gently away.

"Let me fuck you again," he begged.

She readily agreed. Watching the large dog fuck his tight little ass had driven her to a clit rubbing frenzy, but the feeling of her brother's five-inch meat thrusting in and out of her feverish cunt appealed to her more. She got on her hands and knees in front of him.

Without preamble, Jeremy aimed his dick head at her puckered anus, and thrust mightily. His first thrust sank his meat into her halfway, and as she struggled, he slammed the invader in to the hilt.

"Uh, uh, stop it! That fucking hurts!" she screamed and struggled.

"Oh? Really?" Jeremy hissed into her ear as he thrust in and out of her clutching hole. She collapsed, and Jeremy used this to his advantage, pounding his meat into her plump buttocks as rough as he could. Her groans and whimpers told him his message was getting through to her: I can give it as good as I get it.

Underneath him, Francine struggled and wiggled. Her position; flat on her belly, rubbed her engorged nipples against the rough leaves and carpet of grass, and her clitoris pressed painfully against the forest floor as well. Her ass had become accustomed to the furious pounding and slapping of her brother's belly and her hole had long ago stretched to accommodate his thrusting prick. Before she realized it, she shuddered to an orgasm. As her anal muscles rippled, Jeremy grunted and poured his sperm deep into her bowels.

Finally, they pried themselves apart and sat glaring at one another.

"Okay? I don't tell Mom and Dad, and you don't either," he finally gasped.

"Fine, whatever," she huffed. "Deal?"

They shook hands on it, and dressed. They walked home in silence. Jeremy put his tackle box and rod away, and went into the outside garage bathroom. He sat gingerly on the toilet. Upstairs, Francine did the same. She watched between her legs as Jeremy's come slowly dripped from her sore ass hole. After a satisfying piss, she wiped herself and exited the bathroom to help her mother finish dinner.

Dinner at his or her household was always a quiet, somber occasion; no one really talked much. Tonight was no different, the silence punctuated by the clinking of forks and clatter of serving spoons. Jeremy and Francine, never very close, glared at each other across the table. Showers and bedtime followed the quiet meal.

Two days later, Jeremy prepared to go to his little "den" in the forest, really just a recess in the steep cliff nearby. Tall birch trees afforded him some privacy so that he could masturbate undisturbed. He collected his tackle box and rod, his excuse to wander off into the woods. Jackie wagged his tail and followed Jeremy to the den. The dog looked on in interest as Jeremy stripped off his clothing, and grabbed his swelling cock in his hand. With the dog looking on, Jeremy quickly shot a large load. He then lay down on the carpet of moss and thought about the events of a few days ago. He remembered watching in fascination as Francine jacked the dog off and caught the come on her face and in her open mouth.

"So, what's doggie come taste like?" he asked the dog.

He'd tasted his own come a few times, catching a few driblets into the palm of his hand and licking it up. It wasn't the greatest thing in the world, but it wasn't the worst, either. With shaking hands, he reached for the dog, and rolled the dog onto his side. The dog's prick lay hidden beneath a furry sheath, but a few strokes produced the massive member. Hesitantly, Jeremy placed his mouth around the pointed tip and began gingerly licking and sucking the dog. Within minutes, the dog was hunching and huffing and growling in pleasure. Jeremy massaged the large knot at the base of the dog's meat.

The first shot caught Jeremy off guard. With what seemed to be increasing heat and volume, the dog spurted his come into Jeremy's mouth and onto his surprised face. Jeremy swallowed as much as he could, and let the rest shoot onto his smiling face.

"Fuck! I wish I could come like that!" he admitted to the grunting animal. "I can see why Francine likes to suck you, though. Tastes pretty good."

Jackie began to frantically lick himself as the large cock receded into its furry sheath.

"Fuck, I wish I could do that!" Jeremy laughed. "I'd never jack off!"

He steeped outside of the little grotto and relieved himself against a tree, unaware that a pair of eyes watched his every movement. Jackie came up behind him and sniffed his anus. Jeremy gasped, then shuddered in delight as the cold, wet nose pressed his sensitive rectum. A large pink tongue shot out and licked at the puckered opening. Jeremy pulled his ass cheeks apart and the dog eagerly drove his tongue into the offered opening.

"Come on, let's go back to the den," Jeremy gasped, and disappeared into the recess.

Francine watched the action from above as her little brother got down on his hands and knees and offered his ass to the dog's thrusting tongue. Jackie was now in a licking frenzy; his large tongue probing and slurping into the spicy hole. After a moment, Jeremy pulled the dog up, his paws on his shoulders. Jackie needed no further prompting. Francine smiled in smug knowledge as she watched the dog hump her brother's ass.

"Dog fag!" she hissed, and quickly and quietly scampered down from her overhang.

She walked as quietly as she could to the opening of the small den, then burst in. Jeremy's eyes were screwed shut as Jackie's large knot pummeled his aching hole. He was in a sexual nirvana, the delicious friction driving him closer and closer to an orgasm.

"Fucking the dog again?" Francine yelled.

His eyes flew open and he stared at his smirking sister. It was too late, though. The dog was spurting hot come into his bowels, and Jeremy's own come shot out of his overheated dick. Francine knelt down and caught a few thick spurts into the palm of her hand. Jackie's knot receded, and he pulled out of the sobbing boy's ass hole. Francine held out her sticky hand.

"Like come, Dog Fag? Here, eat this!" she commanded.

Jeremy shook his head no and opened his mouth to protest. Francine jammed her hand over his mouth and he had no choice but to swallow his own come.

"God, I'm going to love telling everyone at school about this," she laughed.

"Please don't!" he sobbed. "I'll do anything you want!"

"Oh, I know you will!" she crowed.

"Please," he begged.

"You'll be my personal slave?" she asked. "Starting right now?"

He nodded his head sadly.

"Good!" she laughed. "Now, eat me!"

She dropped her shorts to the ground and exposed her dark blond curls to his gaze. She leaned against the rock wall and sighed in contentment as her brother's trembling tongue delved through the thicket to her sopping wet cunt. Watching her brother suck off the dog then let him fuck his ass had her so hot that when Jeremy's tongue grazed her swollen clit, she screamed and orgasm. She held Jeremy's head tightly against her hairy crotch as she shuddered and shook through the orgasm.

"Hold on, I've got to take a leak," she gasped.

Jeremy fought hard, but Francine held his mouth to her twat as her hot acrid urine flooded out of her and into his choking mouth. She used a handful of his hair to wipe herself dry.

"Mom and Dad are going to Colling's tomorrow, so I'm having Sue over," Francine informed him.

"You can't do that," he sputtered. "You know they don't like no one over when they're not home."

"Yeah? Who's going to tell them? You, Dog Fag?" she sneered.

With that, she dressed and left him with his misery. He slowly dressed and spit several times to get the taste of his sister's piss out of his mouth. He and the dog slowly made their way home.

The next night, their parents readied for a few romantic days at Colling's By the Lake. Actually, the romance had gone out of their marriage years ago, but it was an excuse to drink them into a stupor. They gave their two children light kisses on the cheeks and left. As soon as their car was out of the drive, Francine turned to Jeremy.

"Strip, Dog Fag," she ordered.

"But, Sue's coming over!" Jeremy protested.

"So fucking what, Dog Fag?" she sneered.

Jeremy did so. Francine amused herself with having her brother prance around in front of her for a few minutes. When the doorbell rang, Jeremy froze.

"Get that, will you?" she giggled.

"But, that's.."

"Do it!" she screamed.

Jeremy slowly opened the door to reveal Sue. Her brown eyes opened in surprise when she saw the naked teenager in front of her.

"Come on in, Sue," Francine called out. "Don't pay any attention to him."

Sue was a plump girl of sixteen, with frizzy brown hair and permanent scowl. She shoved Jeremy aside and walked into the living room. Francine was undoing the buttons of her blouse and smiled at her friend.

"Hey, cunt!" she cheerfully called out.

"Hey yourself, pussy," her friend shot back.

Francine finished undoing her buttons and shrugged out of her blouse and bra. Sue reached out and gripped one of her hardening nipples. Francine's mouth opened as Sue cruelly twisted the turgid flesh. Sue jammed a fat tongue into the open mouth. Jeremy watched as his sister and her best friend kissed passionately. Sue undid the snap of Francine's shorts and pulled them down. Her free hand went to Francine's wet cunt and dipped two fingers in. The fingers rammed in and out rapidly and the other hand twisted and tugged at the swollen nipple. Finally, Francine shuddered in orgasm, and Sue released her tortured flesh. Jeremy's cock was throbbing from the excitement.

"Now, eat me, you fucking slut," Sue ordered her gasping friend.

Francine tugged Sue's dirty shorts down and dove into the bushy crotch. After a few minutes, Sue pushed her away. She looked at Jeremy.

"Come here, Dog Fag," she barked.

"You told her?" Jeremy squeaked.

"Of course she did, faggot," Sue sneered. "Now, get your dog sucking lips over here!"

Jeremy was forced to lick Sue's smelly pussy to an orgasm, and then Sue and Francine led him to the bathroom where they took turns urinating on him. Sue bragged that she'd drink two beers before coming over, so she'd have extra piss for the little Dog Fag. He lay in the bathtub with their cooling urine dripping from him and listened to his sister and her friend laugh at and taunt him.

"Clean yourself up, Dog Fag," Francine finally ordered.

They amused themselves by having him wait on them hand and foot while they kissed and fingered each other and watched television. Every time he came close enough to Sue, she'd punch him or slap at his bobbing cock. She managed to get one of his small nipples in her fingers, and he felt like she was going to rip the flesh right from his chest as she pulled it. Finally, they tired of this game, but as a final insult, they made him masturbate into the palm of his hand, and eat his own semen. They then retired to Francine's room.

Jeremy sat and seethed in anger. Finally, a plan formed in his head. He grabbed his old instant camera, and snuck up the stairs. The girls had coaxed Jackie upstairs, which was definitely against their parents' rules, and Jeremy had a good idea what they were doing. The door to the room was open, and in the mirror of Francine's closet door, Jeremy could see the dog thrusting into Sue's fat pussy while her frizzy mane was buried in Francine's blond bush. Jeremy aimed the camera at the mirror. As both girls had their eyes closed in delight, and both were grunting and moaning in pleasure, they didn't see the flash, or hear the whir of the camera. Jeremy snapped off another three pictures, and retreated slightly when the girls pulled apart. He snapped another two of Francine lapping the dog's come from Sue's gaping pussy. He got another two of Sue's mouth wrapped around Jackie's resurgent cock as Francine's fist plunged into Sue's cunt.