"Are you satisfied?" asked Jack. "Can I take it out now?"
"No, honey," she whispered. "Not until I've felt it all the way in."
Jill continued arching her hips and drawing him against her, feeling his big cock slowly slipping deeper and deeper between the sensitive expanding walls of her cunt. She became ecstatically aware of wild new sensations as his bloated cock rubbed deliciously against the raw nerve ends of her hot cuntal tissues.
"Oh God, Jack," she gasped in a home whisper as his cock slid deeper and deeper into her deliriously screaming cunt.
When he had reached full penetration, Jack lay perfectly still over his sister's hot body, reluctant to withdraw his cock, as he knew he must. Lying stiff and quiet he could feel her excited cunt walls gasping and sucking against his massive cock.
Jack thought he would go mad with excitement as he felt his sister start rotating her clasping cunt around the length of his shuddering shaft. Unconsciously he began squirming against her, trying to drive his cock even deeper into her hungry cunt.
"Oh God, Jack!" she sobbed excitedly when she became aware of the movements of his cock, buried so deeply in her dark hot tunnel. Unaware of what they were doing, they began slowly grinding their bodies into each other. The unbelievable new sensations were driving Jill almost to hysterics as she began violently thrusting her hips up against her brother's.
When Jack realized what they were doing, he started to withdraw his cock. When it was almost fully out Jill screamed and, arching her hips, grabbed his and pulled him violently back against her.
"Oh God!" she screamed as she felt his stiff cock slain back up into her hungry cunt.
Jack shuddered in ecstasy at the feel of his sensitive cock gliding back up into her hot pussy.
"Oh God! Oh baby!" she screamed when Jack suddenly threw all caution to the wind and began thrusting his cock in and out of her hungry cunt.
Faster and faster he pounded as she locked her legs around his waist to better receive the battering attack.
Every thrust of his mighty cock sent new sensations tearing through Jill's body. The ecstasy was almost more than she could stand as bit and clutched at her beautiful big brother who was giving her something more glorious than she could have imagined in her wildest dreams.
"Faster, honey, faster," she gasped, feeling his big juice-slickened cock driving madly in and out of her passion-crazed cunt.
The two naked bodies pounded lewdly against each other. The sound of flesh slapping against flesh filled the room as they fucked frantically on.
"Oh honey, fuck me! Fuck me!" screamed Jill, thrusting her ass up to better receive every stroke of Jack's cock.
"Fuck, baby, fuck!" she continued to scream as she bit and scratched at her frantically fucking brother.
As the unfamiliar sensations of her impending orgasm began to build up in her body, she clutched him tighter, frightened of the unbelievable ecstasy she was experiencing.
"Oh Jack!" she screamed in fright. "I'm going to explode! Oh honey, I can't stand it!"
Feeling her body lurching beneath him, Jack drove even harder, knowing his sister was experiencing her first orgasm.
Jill went wild with ecstasy as the massive orgasm washed over her body, sending her flying to the highest peak of sensual pleasure. Feeling his sister lurching and trembling he felt his own rushing toward release. Not wanting to impregnate his sister, he frantically withdrew his raging cock, gushing thick white jism all over Jill, the sheets and pillow cases. Great spurts of the hot sticky fluid continued to spurt out of his shuddering cock.
When he finally rolled over on his back, completely exhausted, Jill slowly recovered and pulled her trembling body up against his. Putting her anus around her brother, she pushed her cum-soaked tits and stomach against him as they dropped off into a deep sleep.
It was late afternoon when the two young people awakened.
"Gosh, Jack, that was realty cool," whispered Jill when she felt him stirrings. "We shouldn't be doing this," he replied. "Why not?"
"Because having sex with your sister is incest and it's wrong," he said.
"Didn't you like it?" she asked.
"Christ yes, I loved it."
"We're wrong to do it," was his answer. "But I think it was neat," giggled Jill.
"So did I," he laughed, drawing his sister tenderly into his arms. "It is neat, but it's still wrong."
"You sure shot a load of juice all over me," she giggled, looking down at the dried jism smeared all over her body.
"Well, I sure didn't want to get you pregnant," he answered, glancing down at her cum-smeared body, "and we better get these sheets washed before Mom gets home tomorrow night."
"There's no rush," she answered. "There'll be a lot more stains on them before tomorrow."
"You're sure a sex bomb!" laughed Jack. "How did you like your first fuck?"
"Gosh," she giggled. "My pussy gets wet just thinking about it."
"Did it hurt?" he asked.
"Only at first," was her reply. "Then it was the wildest, most wonderful thing that anyone could ever imagine."
A sensuous tingle tore trough his body as Jill reached over and cupped his soft cock in her warm hand.
"Your prick even feels good when it's soft," she giggled.
Jack smiled to himself, feeling his cock rapidly enlarging under her gentle touch. When Jill felt it start to swell, she moved down and slipped his cock into her warm mouth. Gently licking and sucking the rapidly expanding prick, she could feel Jack's muscles beginning to tremble and jerk.
Removing his shaft from her mouth, Jill was just starting to lick his big balls with her hot wet tongue when the phone rang.
"Oh shit," she muttered as she got up and walked down the hall to answer it.
"It's for you," she pouted as she returned. "It's your stupid girl friend, Linda. Don't forget that you promised to spend the whole weekend with me."
As he padded down the hall to the phone, Jill went into the bathroom to shower all, the sticky dried cum from her body.
"Hello, Jack," Linda said softly when he answered the phone.
"Hi, Linda," he returned.
"Are you angry with me about last night?" she asked in a nervous voice.
"No, of course not," he blurted. "I'm use to it by now."
"Please, don't be angry, honey…"
"I'm not angry, Linda, I'm just tired of being continually frustrated," was his reply.
"But, darling," she continued, "I want you more than anything in the world."
"But we can't until we're married."
"Why?" he asked.
"When my father marries us, I want to be able to look him in the eyes as a virgin. He is such a fine person and he's spent so much time teaching me about good and evil that I can't let him down."
"We all know what a fine man your dad is," interrupted Jack. "He's practically been a father to Jill and me since Dad was killed."
"Then you do understand?" she blurted.
"No, I don't," he said.
"Why don't you understand?" asked Linda.
"Because we can still enjoy each other without broadcasting it to him. How the hell would he know?"
"But I would know, Jack," she continued. "I would know. Don't you realize that he trusts me and I'll never break faith with a fine person like my father?"
"DO you expect me to keep waiting forever?" he snapped.
"Not forever, darling, but I do have faith that you'll wait for me until we're married."
"Oh hell, skip that shit," muttered Jack. "Are you coming over tonight?" she asked after a short pause.
"No," he answered. "Mom's out of town and I'm staying home with my kid sister tonight"
"Why don't you bring her over here with you? You're always telling me what a pest she is around your house."