"Just looking," he grinned. "I never seen a girl jacking off before."
"Get out!" she shouted.
Terri had always considered her little twelve year-old brother as a pest, but this was the most embarrassing thing she'd ever experienced.
"No!" he laughed.
"Get out," Terri repeated, "or I'll tell Mom that you sneaked in here."
"I didn't sneak in," the boy grinned. "The door was wide open, and wait 'til I tell her what you won doing."
"You wouldn't!" Terri shouted.
"I will unless you let me play with your pussy," he teased.
"You rotten little shit!" she shouted at him. "You're not old enough to know what a pussy is!"
"That's what you think," he yelled. "I've already fucked, and you're still diddling yourself."
"Fuck with what?" she sneered. "A one-inch prick!"
"No," he beamed, rubbing the big hard bulge in the front of his jeans. "With this."
Staring down, she noticed the big lump for the first time and was started by the size of it.
"What girl would let a teenager fuck her?" she taunted him.
"Mrs. Warfield!" Teddy shouted. "WHAT?"
"Mrs. Warfield," he bragged. "When?"
"Almost every day," was his honest answer. "She says I'm a good little fucker."
Terri just stared at him in shock, but knowing Mrs. Warfield, Terri somehow believed her little brother. Glancing down again at the hard bulge in the front of her brother's pants, she had a sudden urge to see his hard little prick.
"Show me your cock," Terri whispered. "Let me see if it's big enough to fuck."
"Promise you won't tell Mom."
"I promise," she agreed.
When Teddy dropped his pants and shorts, Terri was completely shocked at the size of the teens prick. Naturally it wasn't the size of her teacher's huge dong, but it was certainly big enough to fuck a girl with, and his boner looked as hard as steel.
"Let me touch it?" she asked in a low trembling voice. "I didn't know you had such a neat cock."
Grinning with pride, Teddy moved over by where his older sister was sitting on the edge of her bed. "Do you want me to teach you how to fuck?"
"No thanks," she smiled, wrapping her cool young fingers around his stiff throbbing dick. "I already know how to fuck."
"Who?" the little boy asked.
"Mr. Warfield," giggled Terri.
"Are you shittin' me?" he asked in a shocked voice.
"No, honey," smiled Terri. "And so has Troy Chambers."
"Can I fuck you?" Teddy asked.
"Would you like to?" whispered his older sister as she tenderly skimmed the teen's foreskin up and down over his super-erect cock.
"Shit, yes," he panted.
"Okay," smiled Terri, "Come on up on the bed and play with me fast. D'ya wanta put your finger in my pussy?"
"Sure," he grinned, climbing up on the bed with his sister.
Reaching down between the girl's open thighs, Teddy pressed his middle finger into the warm slippery flesh between her cuntlips. He could hardly believe the tightness and hot moistness of her slit as his finger slid deeper and deeper into her luscious hole.
"Oh, jeez," he panted. "Your cunt sure ain't as big and hairy as Mrs. Warfield's."
"Mmmmmmmmmmm, that's it, Teddy," she whispered when the little boy began wildly plunging his finger in and out of her creamy young slit. After four or five minutes of his finger work, Terri was dying to be fucked by his stiff little dick.
"Honey," she smiled, gently squeezing his throbbing young cock. "Let's fuck now."
"Okay," was his quick reply as he crawled up between her legs.
Spreading her cute little thighs farther apart, Terri guided his stiff young prick up toward her eager pussy. Tenderly placing his rubbery-hard cock head against the juicy warm opening of her slippery little slit, she reached for his ass. Then, arching her hips, she pulled his shaft slowly into her foaming cunt.
"Oooooooooh, Teddy," she hummed with delight as she felt his rock-hard little boner slip through her tingling cunt-hole. It wasn't nearly as big as her teacher's, but it felt so deliciously hard as it slipped deeper and deeper into her hot young pussy.
"Oh, Teddy," she whispered when the full length of his young pecker was fully inserted. "Doesn't that feel neat."
Unable to believe that his prick was actually buried up in his beautiful sister's hole, the youngster remained perfectly still between her soft thighs. The teen thought he'd go wild when Terri started rotating her tight sucking pussy-lips around his twitching dong. Unable to control his excitement any longer, he began slamming his stiff cock in and out of her deliciously hot little fuck-hole. The feel of her hot, slippery cunt-walls squeezing and sucking against his quivering hard prick was driving Teddy crazy.
"Oh, Teddy!" the girl squealed with delight. "It feels so good, honey! It feels so fuckin' good!"
Clutching tightly to his pretty sister, Teddy was propelling his stiff rod in and out at an ever-increasing tempo. Squealing with joy, the two healthy teenager were pounding their naked young bodies together in a delirious ecstasy. They were wild about this new game of fucking that they'd both recently discovered, and both of their bodies were tingling with a wild intense joy. Teddy's stiff young dick was pounding relentlessly into her hot little cunt as the boy's smooth pink balls slapped smartly against the cheeks of her cute little bottom.
"Oh, Teddy!" she squealed, clutching his lurching body in her arms. "We're fuckin', honey! We're really fuckin'!"
"You're not shitting," he panted. "Jeez, this feels good!"
On and on they pounded, their young bodies responding like finely-tuned machines as his hard slippery cock pistoned smoothly in and out of his sister's beautifully-lubricated cunt. Not only were they enjoying the physical sensations, but their strong brother-sister love was being beautifully shared between them.
"Oh, Teddy," she squealed, his driving prick turning her body into a boiling mass of lust. "It's so fucking good, honey! It feels so fucking good!"
Entering the house, Craig and Norma Marshall couldn't believe the obscene screams that were coming from their daughter's room. Rushing upstairs to investigate, they could hardly believe their eyes when they saw their little son fucking his stiff cock into his sister's hot cunt.
"My God!" gasped Norma, clutching at her husband's arm. "I can't believe it."
Craig was too shocked to speak or move, and he just stared at his daughter's juicy young cunt as Teddy's cock hummed in and out of it. The man had been in a super-horny mood since Brenda had sucked him off a few days ago, and the sight of Terri's sweet juicy slit seemed to turn him on, even if she was his own daughter. He knew that he should shout and stop them, but he just stood there staring at the erotic scene.
Watching them, Norma couldn't believe the size of her little son's tool. She hadn't had much on her mind except cocks since the night Duane Warfield had sucked and fucked her so thoroughly, and looking at Teddy's stiff young prick seemed to further excite her.
"Fuck, Teddy, fuck!" they heard their naked little daughter scream as she thrust her sweet young ass up to better receive every lash of her brother's hot spearing cock. "Don't stop, Teddy! Don't ever stop!"
Riding her high, as Mrs. Warfield had taught him, the top of his hard little dick was streaking against her erect young cunt, sending delicious sparks flying all through her trembling young body. Her parents could see that the passion-crazed little girl was on the verge of hysteria, yet she was screaming and begging for more.
"That's it, Teddy," she screamed, clutching frantically to her little brother's lurching body. "Fuck me good, honey! Fuck me good!"
The intense pleasure was so profound that Terri felt her entire body was going to explode into a million bits. She wasn't even aware that the shrill screams she was hearing were coming from her own mouth.