When the Need Strikes

Five minutes later, when Lord DeGraves re-entered, Bethany had gone back to dusting, and I was sitting on the chair with a smile on my face and a raging erection, as if nothing had ever happened, confident that my actions hadn't interfered with the contract.

###

"Well," the old man reluctantly said to the young pair sitting in front of him. "Bob tells me that a wet dream isn't a breach of contract."

"Bob?" Craig said. "I thought his name was Joe."

"Bob, Joe...one of the suits. What does it matter? Anyway, you've still got plenty of time to slip up. And you will. Oh, believe me...you will."

After the second cup of tea that Lord DeGraves insisted that they drink, and a song that he'd recently funded he insist that they admire, the siblings got up and silently left the room.

They had barely left the DeGraves mansion before Craig turned up a quiet country road, found a discreet place to stop, and turned to Petra with a hungry look in his eye.

"What?" she said, and then her eyes opened wide and a saucy smile crossed her face. "Oh..."

Craig took her head in his hands, and passionately kissed her. Again, her face was filled with shock before she melted into the kiss, reaching down and unbuckling the belt that her brother had been wearing since he'd gone to bed the previous night.

"What happened in there?" she gasped, as he rained kisses down upon her neck, reaching under her top and removing her bra as quickly as he could.

"Bethany," he grunted, before reaching up her skirt and ripping her panties from her.

"Craig!" she said, impressed, pulling her top off and allowing her brother complete access to her body.

"Back seat," he grunted in response. "Now."

As Craig got out of the driver's seat and reached for the back door, he tore his shirt from his body and dropped his pants. Then, as Petra joined him, he grab bed her and pulled her toward him. Soon, their naked bodies were pressed against each other, their lips were locked once more, and Petra realized what was about to happen.

"Craig..." she panted. "Should we?"

"Fuck it," he replied, and she was forced to agree.

Looking back, both siblings would admit that the first time Craig entered his sister was the most erotic moment either of them had experienced up until then. The electricity that they'd felt during their genitals' earlier, brief encounter was just the beginning - as Craig slid into Petra's soaking wet pussy, it continued to build and build, growing in intensity and causing them both to be more turned on than they'd ever been.

As the last inch of her brother's cock slid into Petra, she felt the first of what would be many orgasms crashing over her - she just felt so *full*, so *complete*, in a way that she never had before. And when he began to withdraw, the feeling didn't dissipate - it continued to cause sparks deep within her belly, made her toes curl and her mouth involuntarily fall open with pleasure, and guttural, animal noises to emit from deep within her...

Craig couldn't believe he was losing his virginity...it felt so good, he didn't understand why they hadn't been doing this years ago. He began to thrust into Petra's shaved cunt, his bareback cock throbbing and pulsating with pleasure at every sensation.

Before long, he could feel his orgasm fast approaching. He gasped a warning into Petra's ear, and she responded by wrapping her legs around her brother's body and pulling him deeper into her.

"Cum inside me," she whispered. "I want to feel you fill me up..."

And Craig obeyed, pumping string after string of his cum inside his sister's bare cunt. She joined him in orgasm, her eyes rolling back into her head, before the pair collapsed onto the seat. For that brief moment, they were completely satisfied...

And then, after a brief rest, they did it again.

###

After that, it was rare for more than ten hours to go past without Craig and Petra finding an excuse to sneak off and fuck. They grew adept at copulating in every possible position - all they needed was five minutes and enough room for two people to stand, and Craig would pump Petra full of his seed as she climaxed around his hard cock.

They spent two weeks in sexual bliss, to the point where even their parents wondered what was happening, why the pair were suddenly so much closer than ever before.

Neither of them brought up the incestuous nature of what they were doing. Any time it felt like the conversation was drifting that way, they'd strip off and make love instead. And after a while, it was definitely making love - Craig would whisper sweet words into Petra's ear as she came, and she'd set an alarm so she could sleep with him at night, and sneak out before there was any risk of getting caught.

At first, Petra feared that if she stopped wearing panties, she'd be at risk of touching herself and losing the money...but it didn't take long for her to decide that the risk was worth it, just so she could be as accessible to her brother as possible. If he wanted to use her body, she wanted to make sure that nothing stood in his way.

She'd never admit it to him - she could hardly admit it to herself - but she found two things equally hot about what they were doing. Firstly, that he *was* her brother, and secondly, that he was using her. Using her for her body, for her cunt, for the orgasms she could provide.

Sure, he loved her - she knew that - but if it wasn't for the money, he wouldn't be coming to her every time he was horny...and cumming in her every time he felt the need. The thought became an obsession at times, especially when he was fucking her, and she wouldn't be able to get it out of her mind.

*I'm being used by my brother,* she'd mentally chant as he pounded into her as she clenched her pussy in time with his rhythm. *He's using me to get off...I'm nothing but a cum-bucket for my little bro. As far as he's concerned, his sister is just a set of wet holes - oh! - and a pair of tits that he can use whenever he likes.*

But after two weeks had passed (just 17 days before they could return to DeGraves' manor and collect their cheque) the honeymoon period began to fade, and the awkwardness began to grow. Craig had no intention of stopping himself from knocking on his older sister's door whenever he got an erection, but the guilt was slowly returning.

"Petra," he panted after a particularly lengthy session, two weeks to the day after they'd returned to DeGraves Manor. "What are we doing?"

"What do you mean?" she asked dreamily. She'd cum so hard that she'd begun to see stars, and while she'd never complain, she didn't much appreciate her brothers' words bringing her back to reality.

"This...I mean. This is...isn't it?"

"Incest?" she asked frankly, the wickedness of the word sending a naughty thrill up her spine.

"Yeah..."

"Well, sure. I mean, technically. But I did some reading, and there's nothing scientifically wrong with it. Not unless..."

"Unless what?"

"Unless you were to, y'know, put a baby inside me."

Just saying the words made her pussy throb with need. She hadn't even realized it was something she wanted until then, but the idea had filled her head with lust like nothing else. She wanted Craig to knock her up...she wanted her brother to put fill her with his seed, and breed her like the stud he was.

"Okay," he replied simply, and she turned to him in excitement.

"Really??"

*That was easy,* she thought. *I didn't even have to ask!*

As he stared at her with one eyebrow raised, she quickly realized that she *hadn't* asked, and that her brother was speaking about something else.

"Yeah," he said casually. "I mean, if you're fine with it, I'm fine with it...and besides, this ass is too good for me to want to stop, y'know?"

"You like my ass?" she said with a smile, and that night, he took it for the first time.

###

One week later, Craig and Petra were in the middle of their third round for the day when they heard a knock at the door.

"Shit!" Craig said, almost on the brink of orgasm.

"Mom and Dad?" Petra asked, unwilling to stop bouncing up and down on top of her brother.

"Why would they knock?"

"Fair point."

Craig ignored Petra's cries of protests and lifted her off him, and the pair redressed as quickly as they could as the knock sounded again, louder, and more impatient. Petra ran to the kitchen at the opposite end of the house, and Craig opened the door, trying to look as nonchalant as possible.

"You!" he exclaimed.

"Aren't you going to invite me in?" Lord DeGraves said, a scowl upon his face. "God knows I've been waiting long enough."

"What are you doing here? We've still got one week to go."

"Why do you care?" the old man asked. "Something I should know?"

Craig hesitated, and the old man's eyes lit up.

"What were you doing when I got here?"

"Housework," Craig said, and DeGraves rolled his eyes in response.

"Still lying," he muttered, and before Craig could respond, asked where his sister was.

"The kitchen," the eighteen-year old answered. "I think she was...cooking."

"Show me where it is, and hurry. I've got something I want to tell you both."

Craig sat next to his sister at the kitchen table as Lord DeGraves closed one eye and stared at both of them. Petra had moved her hand onto her brother's leg, which made him nervous...even though he knew the eccentric gentleman couldn't see through the table, he felt as though they were flirting with danger enough just by telling him untruths, let alone flaunting it in front of him.

"So!" Lord DeGraves said, making the siblings jump. "I'm going to ask you this one. Last. Time. It's been 7 and a half weeks now...tell me. In all that time, have the two of you done anything together?"

"No," Craig replied immediately.

"No," Petra echoed, even as her hand moved up to cup her brother's crotch.

There was a long pause, and a leer slowly formed on Lord DeGraves' face.

"So," he eventually said, nodding. "You want to play it like that?"

"Play it like what?" Petra asked earnestly. "There's nothing to tell, really."

"I'm going to leave a package here," the old man said. "Don't open it until I'm gone.

"I'll see the two of you next week."

###

Petra and Craig stared at the brown paper package for almost five minutes after DeGraves had hobbled out of their kitchen.

"Should we open it?" Petra said thoughtfully. She'd unzipped Craig's pants and wrapped her hand around his cock as she always did when she was nervous - just touching it comforted her.

"I guess..." Craig said. "What's the worst that could happen?"

They went back to staring for a few seconds, before Craig shook his head, and decided to just do it.

"Right," he said, reaching out and pulling the string.

That was all it needed - the small gift slowly began to unfold, to reveal a small pile of chocolate. The pair stared at for a few seconds, and then - just as abruptly as the chocolates had appeared, they were gone.

Petra blinked twice and looked at her brother in confusion. She could taste the delectable flavor in her mouth, but had no memory of picking a treat up and eating it.

But she must have, and so must her brother -the flecks of brown around his mouth showed that she hadn't been the only one to sample the treats.

Then the other memories came back.

"Oh my god..." she said, as forgotten thoughts rushed into her head.

"Oh fuck..." Craig echoed, as he remembering the bakery...Trish...the cupcakes.

There was another long silence as the brother and sister let all the memories that Lord DeGraves had blocked out slowly sink back into their consciousness...and the desires that he'd added slowly drift away.

"Oh my god," Petra finally said, standing up and moving to the kitchen sink. "I think I'm going to be sick."

"*You're* going to be sick??" Craig asked, staring at her in shock. "I've spent the last three weeks fucking my older sister..."

"How do you think I feel?" Petra asked. "I...oh god, I wanted to have your child."

Before Craig could reply, the queasiness overcame the young woman, and she leaned over and threw up into the sink.

"Oh fuck...Petra. I'm so sorry."

Petra didn't reply, just continued to heave and heave until there was nothing left to throw up.

When the Need Strikes

by Pan

Chapter 6:

Neither sibling got out of bed the next day. They each just lay in their respective bedrooms, staring at the ceiling, remembering what they'd done. The positions...the locations...the sensations. They told their parents that they'd come down with some kind of stomach flu, and it wasn't until noon the day after that either of them got out of bed.

Craig winced when he heard the sound of a knocking on his bedroom door - the sound that would have had him leaping for joy just a few days earlier now filled him with dread, and when he opened it, he found Petra with a similarly gaunt look on her face.

"Hey," he grunted, and gestured for her to come in and sit down.

"Hey," she responded, and the two sat in silence for almost twenty minutes before either of them spoke.

"I'm sorry," Craig finally said, but Petra just waved it off.

"I wanted it as much as you did."

They didn't say anything else, and eventually Petra got up and left Craig alone with his thoughts.

That night, she returned to his door, knocked once more, and waited for him to open it.

"Surprised to see me?" she said sheepily, looking much better than she had earlier that day. There was even the hint of a grin on her lips, though if you looked too closely, it would disappear.

"Well..." he said, trailing off. She didn't need him to finish his thought.

"Listen," she said matter-of-factly, once he'd let her into his room. "I figure that what's done is done, right?"

"Right."

"That old man did...something...to us, made us want each other. Nothing we could do about it. Right?"

"Right..."

"So we have a few options. We can sit here beating ourselves up over it, or we can just accept that hey - we had sex. People had sex. It happened."

Craig stared at his sister for a few seconds before responding.

"Where are you going with this?"

"We've still got a chance at winning the four million, right? I mean, you still haven't touched yourself, have you?"

"Of course not," Craig replied quickly. "How could I?"

He didn't mention the temptations he'd faced over the last day and a half. Mentally reliving all the horrible things he'd done to - and with - his sister had been devastating. But, even worse than that, as he'd recalled the feeling of her skin on his, the enthusiasm with which they'd fucked, the love that they'd felt...

More than once, he'd found himself getting hard at the memories. He'd dismissed the thoughts that aroused him as quickly as they'd come, feeling incredibly guilty for even thinking that way, but they kept coming back over and over again, until he'd honestly asked himself if it wouldn't be worth four million dollars to masturbate and just get it out of his system.

"Me neither," his sister replied solemnly, and there was a long pause.

Craig was about to speak when she startled him by finishing her thought.

"...but I've wanted to."

Neither of them said a word, just stared as they realized where the other was at.

"Oh, fuck..." Craig said, as he realized what his sister meant.

"I know," Petra replied, and after another long pause, added "...are we bad people?"

"Maybe he's still..."

"No," Petra said softly. "I remember what it was like. This isn't...this is...

"This is just me."

"Me too," Craig said.

The pair stared at each other for a long while, until Petra said three words, so softly that Craig barely heard it.

"...four million dollars."

Craig responded by rising from his bed and taking Petra in a passionate embrace. Their lips locked, even as both of them felt an incredible sense of guilt at what they were doing, what they were about to do.

Petra raised her arms to allow Craig to remove her top, and as soon as it was off, reached down and undid his belt as she had so many times before. His cock came into view, and she realized that the giddiness at the sight of it was gone, she didn't feel the rush of euphoria, or the secure knowledge that she was doing the right thing.

...she just wanted it, enough that nothing else mattered.

"I'm sorry," she said, looking up at him with sadness, before leaning forward and taking the entirety of his member in her mouth.

Like riding a bike, it came back to her straight away, and she almost reached down to play with herself at the simple joy of tasting the familiar cock. Of course, that would have defeated the purpose of what they were doing. They were so close...if they used each other just a few more times, just to ensure that the money was theirs...

Petra bobbed her head up and down on it for a few minutes, refusing - unable - to look her brother in the eye. When he was good and hard, she removed it from her mouth, and lay back on his bed.

"Please," she said softly, and Craig's inner demons came out to taunt him as he got even more erect at the look of need in her eyes.

"Are you...you're not..."

"I started taking the pill again," she whispered, and Craig shuddered at the fact that he even had to ask, before leaning forward and slowly sinking his cock into his sister's warm, wet, inviting pussy.

The feeling of each others' touch was hauntingly familiar, and it wasn't long at all before Craig warned his sister, and she allowed her own orgasm to wash over her before he met it with his.

As they redressed, the siblings avoided eye contact. Both of them knew that they could never do this again, that the physical sensations weren't worth the lifetime of guilt that they knew they'd feel. This time they couldn't even blame it on a curse, or a glamor, or whatever the perverted old man had done to them.

This time, they knew it was on them.

They lasted three days before having sex again. *One last time,* they each told themselves. *Then it's all over.*

###

When Petra and Craig walked into the office of Lord DeGraves, they were met with the sight of his naked ass bouncing up and down as he repeatedly thrust into Bethany, who lay spread-eagled on his desk.

"Don't mind me," he said gleefully in response to their sounds of revulsion. "I'm almost done...maybe you can go next, Craig-y boy. In just twenty minutes time, you're a free agent..."

They waited outside until a slightly flustered Bethany fetched them, cum dripping down her leg.

Entering the old man's office, they firmly turned down his offer of tea, and sat before him.

"Now," he said, fixing each of them with an intense stare before continuing. "I want to know...anything happen between you two since I saw you last? Don't lie to me...if nothing else, at least tell me you've learned what happens to people who lie to me..."

"Fuck off," Craig said, and the old man cackled merrily in response.

"I think I've got my answer," he said, clapping his hands. "Right! How would you like to do this?"

The money was underwhelming, when they saw it - enough to fill two briefcases each. They weren't sure what they'd been expecting - a truck, maybe. They accepted DeGrave's offer of a bodyguard, and as they were walking out, Craig turned to the old man, slightly red, and asked how much he wanted for Bethany.

"Bethany?" Lord DeGraves said in a high-pitched wheeze. "You idiot, I'd never sell Bethany. She's worth more than money can buy...she's a rare gem."

"Why?" Craig asked, unable to stop himself.

DeGraves gave a slow cackle before he responded.

"Because she's a natural, my dear boy. I didn't have to *do* anything to her...she's here of her own accord. Always has been. But I'll tell you what...come around any time and I'll let you borrow her."