"Okay, I guess that's enough. I've got your asshole soaking wet now," Madge groaned, lifting her face from between her sister's ass-cheeks.
"Thanks, Sis," Babs said, laughing softly at the note of disappointment in the older girl's voice.
Madge reluctantly moved away from her sister's ass and sprawled next to her on the bed, stroking her wet pussy while she prepared to watch the German Shepherd ass-fucking the younger girl.
"Okay, Jake!" Madge said thickly. "She's all yours now. Fuck her ass!"
Jake barked and moved rapidly between his mistress' widely spread legs. Babs reached behind her with a little moan and gripped her ass-cheeks in both hands, opening them up lewdly to the dog's cock.
Jake moved forward until the slitted tip of his prick was pressed against the little circle in the cleft of the girl's trembling ass. Then he pressed down, whining at the same time.
"Ohhhh, yessss, Jake, fuck my tight little asshole!" the young teenager cried.
Her body jerked and her legs stiffened as she felt the big, throbbing head of the animal's cock popping past her outer ass-muscles. The huge prick slipped easily on into her asshole.
"Lucky dog!" Madge said, flicking her lips excitedly as she watched the thrilling bestial action wide-eyed. "Your little ass is just made for fucking!"
Suddenly, unable to stay out of the wanton act taking place before her, Madge scrambled to her knees and crawled over behind the big German Shepherd. As Jake shoved his prick into Babs' trembling asshole, Madge shoved her tongue into the crack of his doggy ass, finding his asshole with one skillful lick. She bored the tip of her tongue into the animal's asshole, and Jake growled with pleasure as he finally shoved his cock full-length into Babs' horny asshole.
"Yesssss! Aieeeee!" Babs screamed.
She squeezed her strong ass-muscles around her pet's invading prick. The big dog-cock felt as large and thick as a battering ram inside her ass. It was hot and thick, and pulsing with animalistic desire.
Jake whimpered as he began to fuck the young girl. He withdrew his cock from her hot, lewd ass-grip, until only his bloated cock-head was trapped in Babs' spasming clutch. Then he eased his fat prick in again, creating friction against her tightening ass-walls and sending thrills through the teenager's body.
Babs moaned excitedly. Her ass responded to the steady pistoning of her dog's prick with increasing pleasure. She felt a hand moving beneath her belly.
"Yeah, go for it, Madge!" she cried, lifting her hips and allowing the older girl's fingers to find Babs' pussy-slit. Madge dipped her fingers into Babs' pussy, stroking it hard from the first moment.
"Ohhh, yesss, it feels soooo good! Fuck my ass, Jake! Rub and squeeze my pussy, Madge!" Babs squealed.
Jake rammed his cock home and began to fuck his mistress with a steady pumping movement. His cock slid in and out of her asshole with increasing pressure, each pumping fuck-stroke harder and deeper than the one just before it.
Meanwhile, Madge was massaging her little sister's clit. She thrust two fingers into the wet fuck-hole of Babs' pussy. At the same time, Madge continued to lick and suck on Jake's exposed asshole. Hearing the lewd wet sounds, Babs turned on even more.
Jake barked excitedly as he continued to fuck his mistress' ass. He felt Madge's tongue shoving in and out of his ass, and his entire body quivered.
"Ohhhhh, God, this feels sooo fuckin' good!" Babs cried.
The big dog-cock moving in and out of her ass seemed to blend with the caressing and thrusting fingers in her pussy. She moaned, her pussy spewing out a steady stream of cunt-juice. The thick cunt-sauce ran into the crack of her ass, too, where it soaked the animal's rutting prick.
Babs worked her ass up and back to meet her dog's steady cock-thrusts. She tightened her ass-muscles before letting him withdraw, only to drive inward again, hard and deep.
"Unnggghhh, yesss, fuck me haaard, Jake! You're fucking my little ass soooo Goddamned good!" she cried lustily.
Jake barked, as thrilled by the sound of lust and pleasure in his mistress' voice as by the obscene ecstasy of her tightly squeezing ass-muscles around his prick.
"Yeah, keep fucking me hard and fast until we both come, Jake!" Babs hissed between clenched teeth. "Ooooh! And your fingers are fucking my cunt so fantastically, Madge! Keep doing that! And rub my clit harder! Both of you – make me come!"
Jake bent the top part of his body over the girl's naked ass. His hips pounded his engorged cock into her clutching ass.
Madge continued to strum the younger girl's clit with one finger while thrusting two fingers in and out of Babs' clenching pussy-hole.
Jake's prick suddenly lurched wildly against the walls of his mistress' ass.
"He's gonna come!" Madge cried excitedly, her mouth still pressed against the dog's asshole.
"Yes! I know! I feel his cock jerking all over inside my ass! I can't wait! I want to feel his dog-cum shooting up my asshole!"
As the dog's thick cum exploded into his mistress' ass, Babs' own orgasm blended with his in a climax which left the girl gasping with pleasure. As waves of bestial orgasm crashed down on her, Babs felt her pet's jism continuing to spurt deeply into her convulsing ass.
Madge groaned against the dog's asshole. She stabbed the full length of her tongue deeply into his asshole, feeling it shudder uncontrollably against her mouth as the animal continued to come.
Suddenly, Madge felt her own pussy explode in orgasm. She wrenched her mouth away from Jake's quivering ass so she could scream loudly as she came, her fingers still fucking in and out of her sister's climaxing cunt.
A short while later, Jake was asleep, his cock finally having gone soft. He was curled up in a ball in the middle of the big bed, with the two teenagers on either side of him.
"Well, looks like he's out of commission for now," Madge said sadly.
"Yeah, guess so," Babs sighed. "But Jake's entitled to a rest after everything we put him through. Let's take a little nap ourselves. Then, by the time we wake up, maybe his cock will be hard again, and we can have some more fun!"
CHAPTER TEN
Babs and Madge slept almost two hours. When they awoke, they saw that the big dog was awake, his tail slapping vigorously against the bed. Babs moaned softly when she recognized the sex-hungry look in her pet's eyes. She knew without a doubt that the handsome German Shepherd was ready for more action with the two girls.
"Hey, you were right, Sis!" the older girl squealed. "Jake's got another hard-on!"
"Yeah, so I see," Babs said softly, feeling her cunt growing moist with renewed bestial lust.
"I've got a great idea! Be right back!" Madge suddenly cried, springing up from the bed and dashing naked from the bedroom.
Babs fondled Jake's dog-cock while she waited for her sister to come back. She stroked the entire length of the animal's stiff prick, feeling it pulse beneath her touch.
"Oh, Jake, you're really horny now, aren't you?"
Jake whined in response. He had awakened a short time before the girls had. Now he was filled with fresh energy and a raging desire to fuck.
Babs spread her legs wide, feeling an erotic heat escaping from her cunt.
"You look so sexy like that, Sis!" Madge said with a grin, returning to the bedroom with a carton of milk in one hand and a container of whipped cream in the other.
"Thanks," Babs responded, her eyes on the objects in her sister's hands. "What are those things for?"
"You know Jake," Madge laughed. "He's always trying to get some of our dessert after dinner."
"Yeah, he's got a real sweet tooth, all right!"
"Right. And you know how much he loves milk," Madge said, still grinning.
"Oh, yeah, he loves milk, but we don't let him have it too often. Dad says it isn't good for him."