InsaneJournal

Fic: The Bet (Charlie/Tonks/Ginny), NC-17
Title: The Bet
Author: its_art
Rating: NC-17
Prompt: Writing Prompt #58 - "Do you like girls or boys? It's so confusing these days"
Pairing: Charlie/Tonks/Ginny
Word Count: 3000
Warnings: Threesome, a touch of incest, rampant bisexuality
Author notes: VERY AU. Has little resemblance to canon post-OotP, but set after Voldemort's defeat (Ginny is 18). Big thanks to misfit_ragdoll for lots of love and beta work.
Disclaimer: Harry Potter belongs to JK Rowling. Just borrowing the characters. (But considering what she did to poor Tonks, I kind of don't want to give her back)

****

Ginny was not like other little sisters. Not that Charlie really had much basis for comparison, having only brothers besides her. But, in his best estimation, she was not the average little sister.

It was probably the influence of six elder brothers. She could keep up with any one of them in a duel or Quidditch. She cussed like a sailor when she was vexed. She could drink more than any of the dragon handlers Charlie had left back in Romania-- and they were burly men with almost a hundred pounds on the eighteen year old girl.

What made Ginny the least like the average little sister is when it came to women. She was even better at helping Charlie score than Bill! Perhaps it was the sweet, innocent girl act. It was not so much her skill, but the very fact she was interested in helping him that fascinated Charlie.

Not only was she willing to help him pick up women, she liked to talk about women. When they went out together, it was always Ginny who made the first comment about some bird's legs or tits.

The conversation at the moment was on Tonks. It was a birthday celebration for Bill, so they knew everyone there. Still, Ginny managed to turn the conversation to women. The Burrow was packed with various Weasleys and Order members, so they were sitting on the floor in the corner, wedged between the wall and the Weasley family clock.

Ginny took a swig of the bottle of Ogden's Old Charlie had filched from the kitchen. She narrowed her gaze on Tonks, who stood several feet away in an animated conversation with Sirius. "Do you think..." Ginny took another drink, wincing as it burned her throat. "She changes her bush along with the rest of her hair?"

Charlie took the bottle from Ginny. He cocked his head, looking over Tonks for a moment. He took a drink, using the time it took to swallow to contemplate the idea. "That's if she's got any hair at all."

Ginny nodded. "Hmm. Good point there, Chaz." She smiled at her brother. "So what do you think?"

Charlie snickered and rested his head against the wall. "I think I've known Dora much too long to wonder about that."

Ginny snatched the bottle away from Charlie. "Well, I've got to wonder, since you-- as you said-- have known her so long, why you've never made a move on her."

Charlie rolled his eyes. "Well, Dora doesn't think that way about me, does she?"

Downing another gulp of the firewhisky, Ginny eyed her brother. "What makes you think Tonks doesn't think about you like that?"

Charlie let out an exasperated sigh, taking the bottle back from Ginny. He frowned when he saw she had drained it. "Dora doesn't think about any guy that way."

Ginny's eyes widened. "What? You're kidding! Tonks is into girls?"

Charlie waved a hand in Tonks' general direction. "It's bloody obvious, isn't it?"

It was now Ginny's turn to roll her eyes. "Wait... You mean Tonks has never actually told you she's a bean flicker?" She pat Charlie on the shoulder. "Oh, Charlie... Oh, Charlie-Boy..."

"You're saying she isn't." Charlie gave his sister a disbelieving look. "I've known Dora for fifteen fucking years, Ginger. I think I know her a bit better than you."

Ginny tapped a finger against her lips. "Hmm... That sounds like a wager to me."

Charlie blinked at Ginny. This was another thing she was known for. Her bets. She always insisted she was right and was willing to put money on it. Unfortunately for Charlie (and his money bag) she usually was right.

But not this time. "All right." Charlie held out a hand to Ginny. "A galleon?"

Ginny took his hand and shook it firmly. "Right then."

Still clutching his sister's hand, Charlie glanced back over at Tonks, who had just waved her arms animatedly to express her point and accidentally smacked Remus in the face. "So, how do you suggest we settle this one? Just go up to her and ask her if she prefers blokes or birds?"

"I was thinking something a little more fun than that." Ginny flashed her patented mischievous smile. "I thought maybe we could offer her both options and see which one she goes for."

Charlie frowned deeply, shaking his head fractionally. "What do you mean there, Ginger? Who we going to get to try and pick up Tonks?"

Ginny let out an exasperated sigh. "Us, git."

Charlie pulled his hand away from Ginny's finally, staring at his sister in wide-eyed shock. "You think... We should try to get Tonks to sleep with us."

Ginny nodded. "Uh-huh."

Charlie furrowed his brow. "Won't she go all aggro if she picks one of us and we don't sleep with her?"

Ginny rolled her eyes once again. "Well, then we'll just have to sleep with her, won't we? Honestly! Please keep up, Charlie. This is very embarrassing for you."

Charlie gaped at his sister. "Wait, Ginger... Are you...?"

Ginny shrugged. "You really think some would comment so much on bristols if they didn't like girls?"

Charlie ran a hand through his hair. "But... You've gone out with blokes."

"Never said I didn't like them too," Ginny sighed, looking more than a little irritated at her brother. "Listen, we both think Tonks is a bit of all right. And we--" she gestured between herself and Charlie. "--Are some of the best looking folks in the wizarding world. Best way to find out how she swings. We're going out Friday night, we'll invite her to come with us." She arched a brow. "So, is this a plan or what?

Charlie shook his head in amazement. "Sometimes you really frighten me, Gin."

****

"Was nice of you two to invite me out," Tonks said as she set her empty glass down on the table. They had gone to the Leaky Cauldron, claiming a darkened table in the back corner. They were already four drinks into the night. Tonks was smiling broadly. "Been spendin' so much time buried under bloody paperwork. When I was a kid, always thought being an Auror just meant catching bad guys. Most of the time, I'm stuck behind that ruddy desk!"

Ginny and Charlie were on either side of Tonks. While Tonks was dressed casually in her Weird Sisters t-shirt and jeans, they had donned their finest seduction gear. Charlie wore a black button-down, with several of the buttons left open, exposing just a hint of his collarbone. Ginny wore a dark green dress from Lavender Brown's shop. It was impossible short, displaying shapely legs Charlie never imagined his little sister would have.

"Been meaning to invite you out for a while," Ginny purred, leaning in close to Tonks. Her breasts just lightly brushed Tonks' arm. "Because you need to unwind and who better to do it with than friends?"

Charlie's eyes widened when he saw Ginny's chest graze Tonks. It was in that moment he realized there was the fundamental flaw in Ginny's plan to out Tonks. Ginny believed Tonks to be straight, yet was required to seduce her. The most logical course of action was to sabotage the seduction. Yet Ginny in no way appeared to be sabotaging.

Then it struck Charlie that if he did win the bet... That would mean his little baby sister had slept with his best female friend!

That was something Charlie was not at all comfortable with. In fact, he was uncomfortable with it on several levels. Despite the fact it would mean losing to Ginny yet again, Charlie hoped Tonks turned out to like blokes. And he was going to put all of his energy into turning things in that direction.

Charlie slipped a hand onto Tonks' knee. "Up for another drink, Dora?"

Tonks' cheeks turned a deep crimson and she squirmed a bit as Charlie slid his hand up her thigh. "Dunno if that's such a good idea, Charlie-boy. 'm feeling a bit lightheaded as it is."

Tonks squeaked softly and Charlie felt something brush against his hand. It was Ginny's hand, sliding up Tonks' other thigh! Charlie swallowed hard and stared at his little sister. She was leaning close to Tonks, lips almost against the other woman's cheek. "Wouldn't want you to lose control."

"Mmm..." Tonks' eyes slid shut. "No. Definitely wouldn't want that."

"But there is something you do want, isn't there?" Ginny laughed throatily.

Tonks mewled softly, squirming as the two Weasleys rubbed her thighs. "Just whatcha doin'?"

Charlie kept his eyes on Ginny. What was she doing? He decided to do his best to ignore Ginny and just concentrate on his seduction. "Don't you like it, Dora?"

Tonks opened her eyes and pushed both Ginny and Charlie's hands away from her. She got up. "S'cuse me."

She walked to the bar. Charlie frowned deeply. It seemed the attentions of both the Weasleys had just frightened Tonks away. Now they wouldn't be able to settle the bet. At least, Tonks wouldn't ended up sleeping with--

"You coming?"

Charlie looked up, surprised to see Tonks back at the table. "Hmm? What was that?"

Tonks grabbed Charlie by the front of the shirt. "I said 'are you coming?' I got us a room." She leaned in and kissed him hard.

Charlie was momentarily too shocked to kiss back. But when he felt Tonks' tongue slid into his mouth, he shut his eyes and allowed himself to enjoy the sensation. When finally they parted, Charlie jumped to his feet. He smiled at Ginny briefly and followed after Tonks. While he might have lost the bet, he at the very least was going to get a shag out of it.

Tonks led him upstairs to one of the room. He followed her in and was about to close the door when he heard an annoyed grunt behind him. He saw Ginny tried to slip in the door. He frowned. "Ginny, what are you..."

Ginny slid past him and sauntered to Tonks. She tilted her head up and Tonks cupped her face, kissing her with the same ardor she had shared with Charlie.

Charlie gaped at the Sapphic display before him. He was torn. While it had been a longstanding dream of his to see two beautiful birds snogging, he had never, ever wanted one of them to be his own sister! "What the bloody hell is this?"

Tonks pulled away from Ginny, frowning slightly. "Wasn't this what you wanted?" She cocked her head. "You and Ginny have been at me all night. I thought... This was a plan..."

"I..." Charlie swallowed hard, sort out the jumble of thoughts in his head. "I..."

Ginny slunk over to him. "Come on, Chaz." She giggled and cupped his face. "It's all in good fun." She pressed herself against him and took his mouth passionately.

Charlie fought against the kiss, his mouth unyielding against Ginny's. This was his sister, his baby sister...

Whose hand was sliding up his thigh. Whose tongue was prodding at his lips. Who was incredibly beautiful.

Charlie opened his mouth and allowed the kiss to deepen, his tongue dueling with Ginny's.

"Hey." Tonks frowned. "You two can snog any time you like. But this is the first time you've let me in on any fun."

Ginny pulled away from Charlie, smiling bashfully. "Sorry, Tonks. Actually, that's the first time Charlie and I have ever done that."

"That right?" Tonks slipped her arms around Ginny. Charlie could see her fumbling with the zipper in the back of Ginny's dress. "Well, thanks for letting me watch something so special." She wrinkled her nose, unable to slid down Ginny's zipper. "Fucking Merlin," she muttered.

Charlie stepped up behind Ginny. "Let me." He put his hand over Tonks' and pulled the zipper down with her. He leaned over Ginny's shoulder, claiming Tonks' lips. Once the zipper was open, Charlie let his hand continue to slid down Ginny's body, caressing her pert arse briefly.

Tonks slid the thin straps of Ginny's dress over her shoulders. Ginny wriggled, letting gravity take her dress down. As she moved, Ginny ground her backside against the bulge in Charlie's trousers. He let out a moan. He moaned again when he realized Ginny wasn't wearing any undergarments. Clad now in only her high-heeled boots, Ginny kicked her dress aside.

Ginny grasped the hem of Tonks' t-shirt. Tonks raised her arms up, allowing Ginny to pull the shirt over her head. She dropped it on the floor to join her dress.

Charlie brought his arms around Ginny, groaning at the feel of her soft, bare skin. He cupped Tonks' bare breasts, caressing them gently and making her moan. He slid his hands down her torso, reaching the fly of her jeans. He opened it and yanked the garment down her slender hips and legs.

Both Ginny and Tonks pulled away once Tonks' jeans had joined the growing pile of clothes. The two women lay down on the bed, Tonks in her panties and Ginny stark naked.

"Well?" Tonks leaned back on the bed, eyeing Charlie hungrily. "You going to strip off?"

Ginny bit her lower lip. "Yeah, Charlie... Wanna see you too."

"You two could have helped me, you know," Charlie said, raking his gaze over the pair. They touched and caressed each other as they kept their gaze on him.

Tonks put an arm around Ginny, idly stroking her breast. "But then you wouldn't be stripping off for us."

Charlie stood at the foot of the bed. "All right then." He slowly unbuttoned his shirt, exposing his muscular chest. Both women looked hungrily over him, seemingly very interested in the various scars he had acquired during his tenure as a dragon handler.

Tonks squirmed as Charlie let his trousers fall. Whether it was from the sight of his body or Ginny's lips on her neck, he didn't know.

Charlie slipped his fingers into the band of his underwear. "You ready?"

"More than," Ginny purred.

Charlie pulled down his underwear and crawled onto the bed on his knees. Ginny turned her attention away from him now, focusing on Tonks. "There's still one of us who's got some clothes on."

Ginny gripped Tonks' panties and slid them down her legs slowly. Charlie groaned softly, taking a hold of his turgid cock, stroking it slowly as he watched the two women together. Ginny discarded Tonks' panties and began to kiss and lick her way up Tonks' thighs, until she settled between Tonks' legs. There was a small triangle of pink hair just above her slit.

"I was right Chaz," Ginny murmured before she darted out her tongue to taste Tonks. Tonks moaned and squirmed.

Ginny grew more enthusiastic, lapping at the older woman's cunt.

Charlie released his cock and slid beneath Ginny, getting between her thighs. He brought his mouth to her, reveling in the forbidden taste of her.

"Mmm..." Ginny brought her head up, making Tonks moan at the loss. "I think Tonks should be in the middle of a Weasley sandwich."

Charlie smiled against his sister's snatch. He pulled away. "I like that idea."

Ginny wriggled away from them, lying down on the bed. "All right... Tonks... Get on your hands and knees."

Tonks pulled herself up, crawling on hands and knees between Ginny's legs. She bowed her head, kissing and licking Ginny's belly. She raised her pert arse and Charlie got behind her, stroking his prick slowly. He was impossibly hard over the whole tableau. He rubbed the head of his cock against Tonks' slit, feeling wet warmth. Tonks moaned as she brought her mouth down on Ginny's mound. This caused Ginny to gasp and arch her back.

Finally, Charlie sank into Tonks deep, her arse pressed against his hips. He closed his eyes for a moment to savor the sensation, but opened them once again quickly so he would not miss the luscious scene in front of him.

With slow and powerful strokes, Charlie fucked Tonks. He slipped a hand beneath her, finding her hard clit and stroking it slowly. Tonks mewled and redoubled her efforts lapping at Ginny. With his free hand, Charlie reached down and caressed Ginny's breasts, tweaking her nipples and cupping the ample globes. Tonks' hand joined his in caressing the young woman.

Tonks was the first to come. She clutched around Charlie, her moans muffled as she continued to lavish her attention on Ginny. Ginny was quick to follow, thrashing around desperately in orgasm.

Finally, Charlie let go, sinking deep into Tonks and climaxing with a cry. He remained buried inside of her for a long moment, enjoying the feel of her contracting walls around him.

Charlie and Tonks fell down onto the bed with Ginny, exhaustion claiming the trio. Charlie spooned against Tonks, her back molding to his chest. Ginny snuggled close from the other side, her breasts pressing against Tonks'.

Charlie planted a kiss on Tonks' neck before turning his head, capturing Ginny's lip. "I guess it's a wash then, isn't it, Ginger?"

"What's a wash?" Tonks asked tiredly.

"We made a bet as to whether or not you liked blokes or birds," Charlie replied, nuzzling his nose against Tonks' shoulder. "Hope you're not mad."

"Course not." Tonks wrinkled her nose, yawning. "But, Gin, why would you do that? You've known I like 'em both since you got that crush on Angelina."

Charlie looked at his devious sister in absolute shock. "You..." And now, it all made sense. The flawed plan. How quick Ginny was to give into all of this. "You planned this."

Ginny giggled. "Well, maybe..." She held up a hand, her thumb and forefinger slightly apart. "Little bit."

Charlie shook his head, chuckling tiredly. "Dora, I think once we get our strength back, we need to make our little Ginger pay for that."

Tonks licked her lips as she closed her eyes, sighing contently. "She has been a very naughty girl." She lazily gave Ginny a smack on the arse.

Ginny purred softly, nuzzling close to Tonks. "I make absolutely no apologies. But you two can punish me all you like."

Tonks turned her head to give Charlie a gentle kiss. "Oh, we plan to."