Incest is best

"MMmm, yesss, you certainly have been teaching her well Ben."
Ben almost feels proud. His father was actually praising him - it's not often that he gets kind words from his father. He finds himself growing inside Janie again, his cock feeling the slippery warmth of her inner walls.
He lets his hands wander up her undeveloped chest, his fingers tweaking at her juvenile nipples. Janie squeals with pleasure, her mouth full, and her cunt full.
"Somehow this feels right." She thinks as her father starts to really pump cock into her mouth.

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"Ungh!" Holy shit...even her mother was never as good as this. Her mouth feels so silky, she sucks so gooood.
As John closed his eyes, letting Janie's little mouth enclose around his member, he reached his hands around her head to hold it firmly in place whilst his hips thrust back and forth into her mouth.

Janie wasn't enjoying this so much anymore, he wasn't as gentle as Ben; he was too rough for her. But what to say? If she dare complain, maybe she'd never see him again?

Ben's cock grew from strength to strength inside Janie's tight cunt. Watching her get fucked in the mouth was an all-new experience for him. As Janie writhed on top of him, her walls contracted around his hardness making him buck underneath. He grabbed onto her thighs, holding her steady whilst his dad continued his rough pleasure.

As Janie sucked harder and harder on John's cock, he soon felt his stomach tighten in anticipation of his ejaculation. Should he make her swallow her own father's seed or should he just squirt it all over her naked body?
He decided on the latter.
Feeling his balls twitch for the last time he quickly withdrew and started fisting himself intensely with his right hand whilst his left still held Janie's head in front of his bright red cock. Two seconds later his white jizz spurted onto her face in one long stream, followed by shorter and shorter ones going down her body, dripping onto her chest and abdomen.
She had almost forgotten about Ben when she felt him thrust harder and harder, grabbing on tighter onto her thighs. His hips stopped as his knuckles turned white from holding her so tightly, it was then she felt a warmth deep inside her, she knew he had spent himself inside her.
She could only smile.

John grabbed a towel from their bathroom, wrapping it around himself. He sat back down on the edge on Janie's bed, watching the two of them hold each other in a lovers' embrace. He was trying to figure out how to go on from here. Should he carry out his deepest sexual fantasies or should he keep them as just that? Fantasies? What if he got caught?

What if he could get Janie to be double fucked by him and Ben?
With his thoughts swimming, he felt a twitch from his cock which he unconsciously started to stroke.

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Oh Janie, what have I done?
Ben looked down towards her, her head resting on his chest, her breath still heavy from her exertions.
If I had never reached out to her, if I had never touched myself in front of her, this would never have happened.
But I would still have loved you.
Ben stroked her hair, slightly matted from drying cum.

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If this is what it takes to keep you Ben, I shall do it. But if he ever, EVER hurts you I shall feel so bad. Oh what am I to do? Why can't I have Ben all to myself?
Janie was still breathing heavily from her efforts, her heartbeat pounding against Ben's chest. She looked up to see her father fisting his growing member.
Oh no...

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John looked down on the pair again, his fist massaging his cock. His cock answering him, twitching its own anticipation for this long awaited attention.
"Get up you two."
Instinctively, they respond and get to their feet, holding each other for comfort rather than support.
Ben's cock hung rather limply now, having had his pleasure he wasn't thinking about going again, but his father was obviously thinking otherwise.
John unwrapped the towel, his erection growing with each stroke of his hand.
"Ben, I want you to just stand still. Janie I want you to blow him just like you did me."
Janie looked up at Ben, he raised his eyebrows, silently asking if that was ok. Janie just knelt before him, placed her small hands around his flaccid cock and put its entire length in her mouth.

Watching his offspring fuck each other was something he found rather more erotic than he thought it would be. Fisting himself to full erection, he knelt down behind Janie and started gently stroking her cunt, feeling her silky smooth hairlessness. His cock almost touching his stomach, he bent down further still to fuck her with his tongue. Tasting her sweet juices for the first time almost sent him over the edge, but he held the base of his cock with one hand to steady himself. He was going to enjoy this as much as he could.

Ben could only close his eyes and imagine that his father wasn't there. That it was only Janie and him in the room, enjoying themselves like that always had.
Janie on the other hand was enjoying herself now. Having her brother's sweet taste in her mouth whilst someone was pleasuring her was quite exquisite. When John's tongue turned into his rough fingers, she started to moan onto Ben's cock. It was now extending back to full force. Her mouth now unable to hold it all, she started bobbing her head up and down its length, grasping his balls with her hands. She could give head like the best of them.
John had decided he had lubricated her enough. His still fully erect cock gently brushed against her opening. He parted her lips with his fingers, allowing him to see exactly where it was he was entering her. His large head stretched her, much more than Ben had done, but she didn't seem to mind. In fact, if he didn't know better, he thought she actually liked it.
My God, my daughter is a cock whore.
He started to enter deeper, his hands now parting her butt cheeks, his thick cock slowly forcing its way into her tight cave.
John let his head roll back and close his eyes, making himself enjoy every single sensation. Before he knew it, his pelvis touched her soft bottom, and he stopped. Feeling the tightness of her walls grasp his manhood. He felt himself grow further still inside her.
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…