"Your friend with the big tits?"
"That's the one," she said, still lovingly stroking his tingling boner.
"Does she suck guys off?"
"Sure," said Marci, "and she loves to fuck, too."
"Can you fix me up with her?"
"I'm sure I can," Marci promised, lowering her face down toward her brother's hard cock.
Slowly and gently, she pulled his foreskin back until his big, purple cock-head was deliciously revealed. She heard her brother let out a soft moan when she enveloped his sensitive prick-head with her warm, moist mouth.
"Oh, shit, Sis!" he whispered as she began sucking gently on his delicious prick. "That feels so fuckin' good!"
Moving her mouth up and down over his straining cock, she began a slow sucking action that had him writhing all over the bed. Her head was soon bobbing faster and faster as she sucked more passionately on his big delicious prick. Kirk's entire muscular body was trembling and jerking from the heavenly sensations being induced by the sweet, soft mouth of his little cock-sucking sister.
He could feel his climax building deep in his balls, and, as his orgasm drew closer, he unconsciously grabbed the girl's head and shoved her sucking mouth down tighter over his throbbing cock-shaft.
"Jesus Christ!" he roared as he started shooting his wad.
Marci's entire body shivered with delight when his hot cum started gushing into her mouth. Not wanting to miss a drop of his delicious fuck-cream, she desperately sucked and swallowed until she'd drawn every bit of cum out of his slowly shrinking prick. When Marci had licked and washed his limp cock completely clean, Kirk kissed her softly on her lips and left the room.
CHAPTER FOUR
From that night on, Kirk was finger-fucking his little sister two or three times a day while she was sucking him off.
"Kirk," Marci whispered to him one afternoon when she was up on his bed with him.
"You've fucked lots of girls, haven't you?"
"I've had a few."
"Is fucking fun?"
"Of course it is."
"Would I be fun to fuck?"
"Shit, yes," he said, grinning.
"Then will you fuck me?" she excitedly asked, her eyes glowing with lust.
"I wish I could," he sighed. "But that would be impossible."
"Why?"
"Because you're my sister."
"So what," giggled Marci. "I've got a cunt, and you've got a cock. Isn't that all fucking takes?"
"It's not that simple," he explained. "Fucking your own sister is incest."
"I know that," she pouted. "But I want to be fucked."
"Then start out the way I began fucking," Kirk advised.
"How was that?"
"My first piece of ass was with one of our nanny goats," he laughingly explained.
"Are you shittin' me?" gasped the startled youngster.
"Hell, no," her brother replied. "They're fun to fuck. I still fuck a goat once in a while when no one is around."
"Are you suggesting that I let a Goddamn smelly goat fuck me?"
"Why not," he asked. "They have nice, hard cocks, and that's all fucking takes."
"I think you're bullshittin me," complained Marci, brushing her long blonde hair back from her face. "Have you really fucked a goat?"
"Yes, Marci," he answered, looking the youngster straight in the eyes. "I've fucked goats, and I think it's fun."
"Will you let me watch you?"
"When?"
"Right now," she said quickly. "Dad's gone into town and so no one else is here but us."
"Okay," he agreed, thinking it would be fun to fuck a hot, juicy goat right in front of his little sister.
Taking Marci's hand, Kirk led her out behind the barn where the goats were kept.
"Which is your favorite piece of ass?" giggled Marci when they were in the enclosure with the animals.
"That one," said her big brother, pointing to a brown and white nanny goat. "She's got a hot little pussy."
"Now what happens?" giggled Marci, still unable to believe her big brother was going to fuck a stupid goat.
"You'll see," he answered, lowering his zipper and whipping his thick, limp cock out. Flipping his prick around with his fingers, Kirk stepped in front of the brown and white animal who began excitedly pawing the ground with her hooves as she sniffed.
"Holy shit!" exclaimed Marci when the nanny goat's thick, wet tongue began licking her brother's soft prick.
"That's a good girl," she heard Kirk softly whisper as he unbuckled his belt and dropped his jeans and shorts down around his ankles.
Marci excitedly watched as the goat lovingly licked his balls as well as his rapidly swelling cock. When his prick had reached a throbbing erection, the animal's tongue was feverishly licking up and down the meaty length of his cock.
"God, what a cock-sucker!" cried Marci, feeling the hot juices leaking out from between her legs as she watched the goat eagerly going down on her big brother.
When the goat had licked Kirk's cock to a throbbing hardness, the youth gently turned the animal around so he could invade her juicy cunt from the rear. Having been fucked by Kirk often enough to know what was coming, the goat was trembling with delicious expectation.
Watching her brother guiding his bloated cock-head toward the animal's pink, wet pussy, Marci was surprised at how much the animal's cunt resembled her own. Excitedly rubbing her hot little pussy through the material of her tight jeans, Marci could see her brother's deliciously naked tool slipping in between the shivering, goat's pink cunt-lips.
"Oh, fuck, she's nice and hot today!" panted Kirk as he felt the scalding slickness of the animal's slippery pussy walls closing around his tingling boner.
Seeing how the excited goat was backing up against her brother, Marci realized the horny animal was trying to work even more of his prick into her sizzling cunt.
"Jesus, Kirk!" Marci exclaimed to her brother. "She really digs your cock."
"You're not shittin," he groaned. "This stupid goat loves to be fucked."
After a short pause, Kirk partially withdrew his hard boner and began fucking into the bleating animal with long, rhythmic thrusts.
"Fuck her good, honey!" his excited sister cheered him on.
The feel of Kirk's big, human cock fucking in and out of her snug little cunt was driving the horny goat wild. The animal's entire body was tingling from the delicious bigness of his hard prick.
Marci had never seen anything so erotic as her brother fucking his thick, slippery cock in and out of the goat's girl-like pussy. Naturally the youngster had never seen anyone fucking before, and this lewd action was almost blowing her mind.
At first Marci had wondered how her brother could possibly enjoy fucking a goat, but seeing the ecstasy on his face, she realized how much pleasure he was getting from the goat-fuck.
"That's it, Kirk!" the little blonde squealed with joy. "Just fuck her silly!"
Wishing her big brother's cock was zipping in and out of her hot little cunt, Marci was vigorously rubbing her pussy through the material of her jeans. Becoming more aroused by the second, the youngster pulled her zipper down and wormed her finger through the leg opening of her panties, drilling it into the slick hotness of her itching, dripping little cunt. Excitedly rubbing her erect clitty, Marci stared at her brother's hard cock fucking in and out of the goat's juicy cunt.
"Oh, yes, Kirk!" she squealed. "Fuck her good!"
Excitedly watching, Marci could see that her brother was fucking the wild-eyed goat for all he was worth, his panting mouth gaping open as he stared crazily ahead of him. She could see the juicy pink lips of the animal's frothy pussy sucking and pulling on the slippery length of his thick prick as he wildly fucked in and out of her steaming pussy. His virile young cock-shaft was glistening with the creamy juice that was oozing out from between the goat's squeezing cunt-lips.