Incest is best

It didn't take long for Janie to quicken her pace, slamming herself down on his cock, and the feeling of her being filled completely sending her over the edge. She leaned forward a little more, finding that each time she took him to the hilt, her clit pressed against his mat of pubic hair. One last time, she let herself fall down, her clit pressing against him. She held herself there, moving her pelvis forward and back, pleasuring herself against him. She grabbed onto his chest, digging in her nails slightly as she felt her walls tighten around the cock inside. Ben opened his mouth in a silent moan. He felt her walls tighten, massaging his cock out of all his cum when he finally sent his orgasm into her tight hole.
Janie felt his cock release his warm liquid into her, the sensation of warmth filling her cunt finally sent her into the same orgasmic release, her own juices mixing with his.

Ben blinked, looking up to his sister's flushed face.
"We need to clean up fast, before dad gets back."

"What do you need to clean up before I get back?"
Ben and Janie both stare towards the now wide open bedroom door, their faces both turn white in sheer panic.
Their dad, John, leans against the bedroom door, and quite strangely is not angry - or even shocked for that matter.
"I knew you two were up to something, but I never in my wildest dreams thought you'd be fucking your little sister Ben."
He moves his stare to Janie now, her bare chest turned towards him but her naked ass still sitting on top of Ben.
"How does it feel Janie? To have a boy inside you? You like it sweetie?"
She can only manage enough energy to nod slowly.
John starts to enter the room, his hands coming out of his trouser pockets to show his own erection.
"Do you really love your sister that much Ben? I mean, I don't think mum would approve of what you're doing would she?"
A silence indicates his answer.
"I don't think she would, in fact, she'd probably split you two up - send you off to school somewhere, leaving Janie here. By herself."
He could see the pain in Ben's eyes, the water slowly filling up in Janie's - they were both on the verge of tears.
"But there is one way out of this..."
They both sit up - eager to hear his response at how they could stay together, naively thinking he WOULD actually tell.
"I think that if you do something for me, I don't think I have to tell your mother. We all love each other right? So what harm is it doing anyone?"

---------------------------------------

I couldn't quite believe what I was hearing. Dad is blackmailing us to stay quiet. It's worth it though, thinking about it. It wouldn't be that often, and we'd only have one parent to worry about then. We'd be able to make love more often.
Looking down at her small body - I see she is shivering, so I put one of the small blankets around her. My poor Janie.

----------------------------------------

Daddy doesn't sound as if he's going to smack me. I thought he would do if he found Ben and me together. He has a bulge just like Ben. Except it's bigger. Everything of his is bigger, including his bulge. I suddenly find myself thinking about what he looks like without clothes, wondering if he's like Ben, if he could make love to me like Ben.
I shiver at the thought, thinking I shouldn't be having these thoughts. Ben caringly wraps a blanket around me.

----------------------------------------

"So here's what we're going to do...Ben - you're going to do just what you're doing now, I want you to make her moan as loud as you can so when she gives me head it feels better. OK?"
It's almost as if he's telling them what they're going to be having for dinner. He's so calm about all this.
Janie pulls the blanket closer around herself, knowing that not all is well.
John takes off his trousers, his older prick restricted by his underpants, which are also removed quickly.
Staring at both of them was quite literally a monster. A good 9 inches of thick meat, rising to the occasion, twitching in anticipation.
He kneels down by Janie, stroking her head like always, smiling at her like always.
"Now, you may not like this as much Ben, but you're going to have to get used to it. I'll leave you be for some of your own quiet time with her, but whenever I feel like it, I want either Janie or both of you to please me. Got it?"

They both nod, Janie smiles nervously, just glad that she won't be taken away from her Ben.
"Now, before your mother gets back, I want you to put my cock in your mouth sweetie, just like I'm sure you've done with Ben before. You OK with that darling?"
Before she has time to even think about ans answer, his cock head is pressing against her small lips, his strong manly smell overpowering Ben's more naturally sweet scent.
"Come on baby, open up for daddy."
Janie obeys, her mouth doing for her father what it had already grown accustomed to doing for her brother.
"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.