Baby Sister

Warning for underage oral sex. If this squicks you, don't read!

Set in June 1989: Ginny is seven, Bill is 18 and he's just graduated from Hogwarts.


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By the time she goes to Hogwarts, Ginny Weasley knows all about having fun with boys. She's the only girl in the family, after all, so she plays with her brothers all the time.

Bill is special: he's the eldest, and so very clever and handsome! He makes Ginny feel special too, when she slips into his room really early on Sunday mornings -- as she's been doing ever since she can remember -- and he smiles sleepily, lifting the blanket, inviting her to climb in and snuggle up to his long, warm body.

Bill holds her close and pets her like a kitten. He kisses the tip of her nose. He tells her silly jokes and riddles that make her giggle, then tickles her tummy through her nightdress so she giggles even more. Ginny is in bliss.

All week long, she's been saving up little things to tell Bill on Sunday, because she can tell her biggest brother anything, and he'll always understand.

But the very best part of Sunday morning starts when Bill's caressing hand moves under Ginny's nightdress and up, up, all the way up her leg... and she squirms with excitement, knowing what happens next.

He leans over her and she grins up at him.

"So, want a little lick, Gin?" he asks, kissing her nose again -- and at her breathless, impatient "Yes!" he covers her mouth with his own.

Her lips part for him at once. The tip of his tongue traces the gap left by a missing tooth, then meets the much smaller tongue waiting for that touch. Meanwhile his hand is busy between her legs, stroking softly, making Ginny squirm again and whimper into the kiss.

She tugs at her nightdress, pulling it up around her waist. Bill pauses only to reach for his wand and cast a silencing charm on the door -- she can feel the hard part of him press up against her side as he moves -- then he gives her one more peck on the cheek and slides down under the blanket, where his sister's thighs are spread wide, ready for him.

Placing one hand under her bottom, he tilts her hips and starts with long, slow licks all around that part of her where the special feelings come from.

Up and down, over and over, and Ginny can feel the glow starting, spreading out; oh, this is better than icecream, almost as good as birthdays or Christmas... Bill's tongue darts to one spot -- does it again -- and Ginny moans, stretching her arms above her head and closing her eyes.

Then she feels his finger touch her lips and accepts it eagerly, drawing it into her mouth to get it thoroughly wet before letting it go. This is still a new part of their game, and Ginny is proud of it: Bill always used to say she was "too ickle to tickle on the inside" -- but she's grown, she's seven now, big enough to welcome the slick finger that slips into her body.

Bill thrusts gently, moving round and round, pressing up inside her. Ginny pushes against his finger, spreading her legs still further, writhing a bit; she hears her own rapid breaths and small, meaningless noises coming out of her mouth. Bill sounds like a cat lapping milk as his tongue circles and flicks, circles and flicks... The glow gets stronger and stronger -- it spreads all over her body -- and everything rushes forward, and Ginny cries out, her back arching, her bottom pushing down hard into Bill's hand.

Her eyes are still closed when Bill leans over her again for another kiss. He always likes to kiss her, afterwards. His hair, which is growing longer and longer, brushes across her face.

"A happy Ginny, are you?"

She opens her eyes and holds out her arms to him, asking to be hugged. He pulls off the nightdress, leaving her as naked as himself, then holds her and kisses her for a long time, reaching into her mouth with his tongue. His hand is between his own legs now, pulling and rubbing.

Ginny lies there, warm and content, loving the way Bill's skin feels against hers. Loving Bill.

Finally he breaks the kiss and sits up, breathing hard. She sits up too, wondering how he'll want to do it this time -- then smiles as he moves to brace his back against the head of the bed, spreading his legs wide. This is familiar.

Ginny sits on her heels between his legs, facing him. Bill likes her to watch. He likes being able to touch her while he touches himself.

Now his fist starts pumping, and she follows it with her eyes. The hair all around there is a much darker red than the hair on his head; the thing's tip is shiny-wet, very pink. Ginny leans closer, then glances up and finds his eyes on her -- and remembers to dart her tongue over her lower lip, only a little, but it's enough to make Bill groan and reach out with his other hand. It glides along her neck, down her back, cupping her bottom and squeezing. She touches him too, petting the soft pouch below the hard thing.

Bill's talking nonsense now, a muttered stream of "yes" and "please" and "Merlin" as his fist moves even faster and his other hand slips between Ginny's thighs. Her breath catches, and she can feel some of the glow coming back, just from that light touch and seeing him -- her big, powerful brother -- helpless in pleasure, waiting for her mouth.

"So close--" Bill whispers, stopping his hand and shutting his eyes. "Gin... do it, suck my cock, baby sister -- do it now -- want to come... come in your mouth -- please Gin, suck me!"

She knows what to do.

A light kiss first, on the very tip; then she wraps both hands around the hot length of it, moving them up and down as he has taught her, and opens her lips to take him in.

Bill says her name, his voice deeper than usual, raspy and urgent: his Sunday morning voice.

Ginny strokes him some more, running her tongue around the tiny, salty hole at the tip. Her world narrows to smooth skin and dark curls and the rich, good smell of Bill's body, and she wants him to say her name like that again -- so she takes as much in her mouth as she possibly can and starts sucking hard.

His hand is shaking as he slides a fingertip inside her. "Ginny..."

And that is her cue to look up and give Bill what he says he likes best: the sight of her with her hands on him, her small mouth stretched and full, her eyes wide as they meet his.

"Oh," he sighs, and "Oh" again, and his legs quiver, and then Ginny is doing what they call "drinking Bill" -- she keeps trying to swallow all of it, but the thing in her mouth jumps about so much that some of the drink runs out every time.

As soon as his eyes open he pulls her up to rest against his chest, kissing her over and over, licking away the drops running down her chin and neck. Ginny cuddles close, and he murmurs into her hair about how much he loves her. She feels wonderful.

While Ginny is putting on her nightdress, he transfigures a scrap of paper into a pink rose for her. She puts it behind her ear and makes a silly face at him; Bill kisses her on the nose, laughing, and she runs back to her own room in fits of giggles.

Until next Sunday morning.

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But then Bill isn't living at home any more. He moves to London first, to work at Gringotts, then far away to Egypt. Ginny misses him very much.