Incest is best

Sorry it took so long for the update - but I do like making you wait >:)

Grasping her small hips now, he withdrew slightly. His knees inside her parted legs, his pelvis began a steady motion, back and forth, deeper into her before retreating and thrusting again. Her smallness only serving to hold him in more tightly, his cock urging him to move faster, to release himself inside. To fuck his daughter's brains out.
At this, he smiled to himself.
Yes, I could do this for a long time yet…

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As Ben looked down Janie's back, he could see her smooth white skin contrast with his father's more tanned and hairy stomach. He noticed how his hands held onto her hips and how he was rocking back and forth into and out of her cunt. He was wanting to say something about how Janie was his, not John's. But the feeling of her mouth, oh...
Ben almost lost his balance as his knees began to buckle, his cock slipping out of Janie's mouth.
Janie whined liked a baby that had lost its dummy, wanting her mouth to filled with something she enjoyed. Ben quickly regained his balance, inserting his cock into her mouth once again, his precum giving her a tasty appetiser.

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Sweat began to form at the sides of John's forehead, one drip trickling down to his cheek as his efforts of filling his daughter began to show. Fucking her, having her body impaled by his dick excited him more and more, hearing her moans and seeing her give her own brother a blow job seemed to be more than he could ever wish for.
He was coming close to the edge now, his cock for the second time in one day was about to explode all over his daughter. He withdrew his meat from his daughter and began to jerk off, every now and then rubbing his cock-head over her buttocks. It then fell into her crevice where he began to rub himself over her butt crack and it was then that he shot his load up her back, followed by more white cum leaking out and over her hole.
John gave out a very much satisfied grunt as he instructed Janie to turn around and lick him clean.

So Janie did as she was told. She released her brother and turned around, her ass now pointing at Ben's hard-on, her tongue sliding all over her father's cock, making sure his salty deposits were removed.
Ben started to press his cock against her freshly used hole, his temptation too much for him to handle. He looked up at his father's satiated grin and decided he wouldn't mind.
With all the juices both from Janie and her father, her hole well lubricated, he decided to try for her smaller hole, hoping it to be even tighter against his throbbing cock.
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Oh God, my daughter, such a cock whore! Oh...oh yes that was good.
John was sitting on the floor now, his back resting against her bed. His eyes felt tired and he wanted to sleep.
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Yeah that's good. My cock feels so good against her skin.
Ben began to rub his cock over her ass hole, holding it with his hand as he guided the head to press against her puckered entrance.
Janie moaned more loudly, as if begging him to enter.
So that's just what Ben did. He felt her muscles relax, letting him enter the top part of his cock-head into her tiny hole. Janie let out a yelp when his head began to stretch her too much, which awoke John.
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"What are you doing Ben?"
Ben couldn't help it, he kept on inserting himself into her very tight hole, Janie crying out more loudly.
"Ben, are you fucking her ass?"
"Yeah, feels..so good!"
"Ah! Daddy, make him stop!"
Ben's mind registered that he was starting to hurt his little sister, but he was sure that the pain would go away once she relaxed. And anyway, his dick felt too good right now.
Ben's father got up so that he could watch his son's cock enter his daughter's ass.
As the sight came into view, he couldn't believe that his own cock, yet again, felt life. He held on to himself gently, hoping that even at his age he could bring himself on to another erection. Anything to fuck his daughter.
Whilst he was doing so, he noticed his son's ass. His cheeks wobbling every time he tensed his muscles to insert himself deeper. They were so white, so smooth. John had never ever found men attractive, but somehow those cheeks invited his cock to enter them.
"Ben, I want you to carry on fucking her ass..."
"But daddy!" Janie cried "it hurts!"
"..just relax sweetie, let him in, it'll feel good once you relax."
He looked at Ben's innocent face, concentrating so hard on getting his cock deeper into Janie's ass.
"Ben, carry on, and don't stop until I tell you that you can. You're going to feel just like Janie, as punishment for hurting her."

He felt like he had to give a reason for himself to feel this excited about fucking a young boy's ass.
The closer he got to them, the harder his dick got. When he finally got the nerve to part his son's cheeks, Ben flinched, jerking himself all the way into Janie's ass.
Janie cried out again, a tear falling down her cheek as Ben almost neared his climax.
John smeared his precum around his hole, his rough finger playing with Ben's opening. Urging him to relax, he applied lubricant before resting his now throbbing head on his hole. Forcibly, he guided his head inside, Ben grunting with the sudden shot of pain shooting through him. Then he felt the heat of his father's cock filling him, a strange sensation.
Ben could hardly contain himself now, his cock having its carnal pleasures whilst his ass is filled by his dad. All of a sudden, he began to enjoy it, his body relaxing and helping his dad to fill him, there was a certain place that John's dick was pressing inside him. Is that what a girl's G-spot felt like?
Ben reached around his back and grabbed on to his father pulling him in deeper.
John felt himself slide all the way in, lubricant helping but it was Ben that pulled him in. He began to fuck his ass, just like he had fucked his daughter not ten minutes before. His balls began to slap against Ben as his thrusts became more vigorous, his hips colliding with Ben's as he too was still fucking Janie's ass.
Janie had somehow found herself starting to enjoy the pain. She reached underneath herself and started to use her little fingers to touch herself as Ben and her father both kept thrusting.
Ben reached climax before anyone else, releasing himself with large bursts inside Janie, his cum dribbling out as he inserted himself in again to please Janie.
John felt Ben tense up during his climax, his muscles closing around John's prick as he too began to near his third orgasm.
Janie felt the pool inside her, his dick easily slipping in and out of her ass. She wanted to come so badly.
"Mmm, daddy! Make me come!"
Ben was exhausted, his now limp dick slipped out of her and he knelt on all fours, trying to hold himself up to please his father.
John had closed his eyes, pumping himself faster and faster into his son's ass, feeling the tightness around his cock. He wanted to stop so he could fuck little Janie again but he was almost there.
Ben tried to get him off quicker by reaching under and grabbing his balls. Groping his own dad as he was fucked in the ass.
John felt himself getting dizzy, blood rushing to his head as his third orgasm washed over him. This time he stayed inside, his jizz spurting far up Ben's crack.
He knew that was one of the most intense orgasms he had ever had.
He also knew there was still more to come...Janie still needed attention.