I don't know what's got into my sister. Since being a kid, she's been a tomboy, into climbing trees, making bows and arrows (when she 'discovered' the Legend of Robin Hood, and wanted to be as good as Maid Marian). She suffered the bumps and scrapes all children get, along with me and my best mate, Alan; and our mother would patiently wash our wounds, dab them with antiseptic, and apply sticking plasters.
This last six months, since she turned fourteen, Ellie has been coming to me with her woes. I'm two years older than she is, which is quite a lot of growing at that stage in one's life. There has been less need for sticking plaster and more for sorting out some of the strange ideas which seem to be filling her head these days. I wouldn't care, but there have been other, physical, changes in her — and me, for that matter — which make me uncomfortable after only minutes in her company. Especially when she does her usual thing and sits on my knee while we talk.
The other day, while Mum and Dad had gone into town to spend the shopping vouchers they'd received for Christmas, she'd been sunbathing out in the back garden. She decided this year that a tan was important, despite my telling her about the dangers of too much sun causing the skin to age prematurely. Anyway, Alan and I were wearing only shorts, because of the heat, watching cricket on the television, when she came trotting in wearing a very skimpy bikini in yellow cotton and plonked herself down on my lap, wrapping one arm nonchalantly round my shoulders.
I mentioned her physical changes and the effect they had on me, and when she planted her butt firmly on top of my cock, it was no surprise to me when I felt it begin to stir into stiffness.
'What's up, El?' I asked, squirming a bit to relieve the pressure. She turned and looked oddly at me.
'I was going to ask... ' her voice trailed away as she shoved a hand underneath her and grabbed my cock. It was suddenly as hard as a rock. Her lips opened in an O of understanding.
'Did I do that?' she asked.
I glanced at Alan, who was staring at us curiously. 'What do you think!'
She smiled, a mixture of mischief and triumph. 'Come here, Alan, ' she said. Whilst I'd been sitting on the settee, he'd been sitting on the floor with his back to it. Now he got up and sat beside me.
She leaned back against my chest. 'Do you get stiffies?' she asked him.
His face reddened. 'Sometimes.'
Her hand had drifted to her crotch where she began gently rubbing herself. She let her legs slip apart, either side of mine.
'Let me see, then, ' she said. Twisting round to me, she added, 'You, too.'
'I'm your brother, ' I said, but she was already pulling down the zip on my shorts and working my cock into the daylight.
At the same time, Alan unfastened his shorts and pushed them down until he could kick them off. His cock was rapidly hardening as we all looked at it.
Ellie reached down until her hand hovered over it. 'You mind if I touch it?' she asked.
He licked his lips and shook his head, but his eyes were now riveted on her crotch, which was beginning to show a damp spot. 'Mind if I touch you?'
She slipped off my knee until she was sitting between us, a cock in each hand. Alan was rubbing at her crack. She leaned hard against me.
'Why don't you feel my titties, Rob.'
My hand began the journey to her chest involuntarily before I stopped it. 'Because you're my sister, ' I said.
'Screw that!' she said. 'If I don't care, why should you?'
I shrugged. It wasn't as if I was spoiled for choice. Only one girl had so far let me feel her tits and slide a hand up under her skirt while we watched a movie, but that was as far as I'd got. Alan reckoned he'd managed to persuade some year nine slut to do the deed with him, so technically, he had more idea than I did — if he was telling the truth.
'Why don't you get your shorts off as well, Rob?' Ellie suggested.
'Why don't you get your bikini off?' I retorted.
She smiled — again that hint of mischief and triumph. 'Why don't you take it off for me — and I'll get your shorts.'
For a few minutes, we fumbled with each other's clothing. Her hand felt cool on my thighs as she slid my shorts down, yet when I removed her bikini top, making sure I copped a good feel of her burgeoning tits, they were hot and smooth. The nipples spiked and my cock twitched in response.
Alan moved his hand and we eased her bikini briefs down past her knees in a joint effort. The crotch was soaked and I became aware of her womanly scent. My cock twitched again. She grinned and suddenly twisted so she was laying with her head in Alan's lap and her legs across mine, trapping my throbbing cock between the smooth flesh of her thighs. She used both hands on Alan's cock now, gently rubbing it, up and down. Her thighs relaxed and I found myself staring at the glistening lips of her virgin twat. At least, I assumed it was virgin. It was positioned conveniently, just where, with a little applied pressure to my cock, I could rub the head gently up and down her creaming slit.
When I looked up, she'd wrapped her lips round the purple head of Alan's cock. It was oozing a steady stream of clear precum, and she was spreading it along the shaft with her lips and tongue, mixing it with her own saliva. Alan was kneading and flicking gently at one nipple while he allowed her to do as she wished with his cock.
I was sliding my fingers along her dripping slit and round the little hood which covered her clit. Her labia were slowly unfurling and the scent of her arousal was getting stronger. I knew it wouldn't be long before I simply had to ease the build-up of sperm in my balls.
Ellie held Alan's cock still for a moment while she fitted it into her mouth. I could see the lump where it was pushing against her cheek. She began a long, slow action, with her tongue, I guess, from the movements of the muscles in her throat. And every now and then she would swallow some more precum.
It was no good: I had to do something about my own problem. Ellie opened one eye and saw the expression on my face. With her free hand, she reached down and pressed the tip of my cock into her cunt.
'But Ellie, ' I protested, 'you're my sister. And anyway, hadn't I better use a condom?'
'Screw that!' she said again, easing her mouth away from Alan's prick long enough to speak, and then going down on him again.
I can pull out, I thought. Sure I could! Only the second fuck in my life, and my gorgeous sister at that. Did I say she's a stunner? Her tits are still fairly small, about tennis-ball size, but they are perfectly formed. There's just a thin thatch of blonde hair on her mound, and below that, her clit and vaginal lips are luscious. At least, in my eyes.
So did she mean she didn't care if I fucked her, or if she didn't care whether I used a condom. That's the trouble with imprecise commands like that. On the other hand, was she being quite concise and simply telling me to screw her?
Her cunt squeezed gently on the tip of my cock, encouraging it further into her. I had to roll onto my side so I could bring my full length to bear, before pushing gently into her welcoming depths.
In the meantime, Alan was beginning to squirm. I could see his swollen balls beginning to rise and figured he'd be cumming any minute. Ellie must've realised it as well, because she was now using both hands to massage his balls and the last inch of his cock she couldn't get in her mouth.
In the meantime, my cock was also not all the way in. I felt it nudge against her cherry. Ellie paused long enough on Alan's cock to press her cunt against my prick, leaving me in no doubt she wanted me to continue. I pushed back at her, and suddenly the obstruction parted and I was able to force my cock the rest of the way into her untouched, virginal interior. I pulled back an inch then thrust in again, gaining another half-inch and spreading the lubrication which was almost pissing from the end of my cock and mixing with her own vaginal oils. Once more I pulled out and pushed in again, at last feeling the sensitive tip of my cock come into contact with the neck of her womb.
She groaned and worked harder on Alan's cock. He was writhing hard, his hips humping against Ellie's face. She had her nose buried in his public hair, so that last inch of his had obviously found a way in.
Suddenly, he erupted. His hips jammed up against her face and his whole body arched. I could see Ellie swallowing for all she was worth, while at the same time, her cunt began to squeeze and ripple against my cock. I figured she was cumming. I managed to control my desire to pump her full of baby-making jizz long enough for her to pull away from Alan.
At the same time, she pushed me off her. It was one of the most difficult things I've had to do.
'Wait!' she commanded, while kneeling up on the settee, astride Alan's legs, and bending forward so she could kiss him while much of his own cum was still coating her mouth. 'Get behind, ' she said to me.
I got. Positioned as she was, she was just the right height for me to push my cock back into her creaming and wide-open gash. She pulled her cheeks apart to broaden the target. I gripped her round the waist, one hand running underneath to grab her bobbing breasts the other positioning my cock at her welcoming entrance. As I thrust back inside her, I felt a hand rubbing her clit, and realised it must be Alan's.
Ellie was moaning now, and emitting little "uphs" with every inward stroke. But she continued kissing Alan, one hand still on her butt and the other pulling at her nipples. Her cunt was in a constant state of excitement, squeezing and rippling inside like a gentle fist. Then when I bottomed out, I actually felt her cervix dipping into the area a the end of her canal where I was about to shoot my baby-makers.
'Oh, Ellie!' I cried, 'Here it comes. I hope you're safe, because I'm gonna blow enough jizz in you to keep you pregnant for years, ' I said.
She took her lips away from Alan's and looked back at me.
'Screw it!' she said, so I did.
I felt my balls tightening and my prick expanding as much as her tight little cunt would let it. Then there was that exquisite sensation as the sperm was forced through my prostate, along the tube which runs the length of my prick, finally being belched out right where her thirsty cervix was sucking it all up into her womb. Three, four, five big spurts splattered the heaving walls of Ellie's cunt, which went into overdrive, massaging my prick to extract the last few drops.
'Ugh! Ugh! Ugh!' she grunted in time with my thrusts, gasping into Alan's open mouth.
I waited while the tumult in her pussy calmed down, then pulled my cock out and sat down.
'Christ, Ellie, that was fucking fantastic!' I told her. She grinned at me as she rose to her feet.
'Yeah. Not bad for a beginner.' One hand was absently catching the sperm which was beginning to run out of her little twat. She glanced at Alan, whose cock had hardened up again, presumably at Ellie's and my little show, despite the fact that barely five minutes had passed since he'd blown his wad down her throat.
She straddled his legs and rubbed my sperm over his cock to lubricate it before holding it in place while she lowered herself onto him. When she was firmly impaled, she licked the rest of my sperm off her hand.
'Mmm. Tastes different from Alan's, ' she said. 'I'll be able to tell you two apart, even in the dark.' She turned her attention to my friend who was humping his hips to force his prick as far as possible into her. She squirmed down on him before using her powerful thigh muscles to lift herself up and drop down again, while a little sigh escaped her lips.
With her eyes half shut, she continued to pleasure herself and Alan, but turned to me and said, 'Why don't you kiss me, Rob? I know I'm your sister, but you could make an exception.'
I grinned and kissed her, long and slow. When she came up for air, she said, 'You realise that what Alan's doing is pushing your sperm further up inside me? If I do get pregnant, it'll almost certainly be yours.' She turned back to Alan and kissed him, gently nipping his lower lip. 'But then, there's always a chance for you, Alan. And you can go first next time, give your baby-makers the best chance. Just think: you could be getting me pregnant any minute now. I can feel you ... feel you ... filling me ... filling me — ' She let out a little whimper and sat down hard on him. Her words must have stimulated her to orgasm, and a moment later, Alan grabbed her hips and pulled her down hard, while he strained upward. I could see her stomach ripple as her muscles pulled the jizz from his cock.
Alan grunted with every ejaculation. Sperm and girl-juice, mixed into thin gossamer oozed out of her, round his pulsing cock, while Ellie fastened her lips to mine and our tongues mingled until they were both exhausted and done.
We took a shower together afterwards, and Ellie was as good as her word, letting Alan get into her first, after she'd sucked his cock back into stiffness. When he'd blown his wad again, it was my turn: seeing the two of them fuck had given me another stiffy, and I needed no help from either of them before tipping Ellie forward over the wash-basin and ramming my steaming cock back up her hole. The tickling of her thirsty little cervix on the overexcited head of my cock pushed me over the edge quickly, and I hunched over her to get every last drop of my sperm as high up her cunt as I could.
As we rested, my cock still plugging her hole, she twisted her head round and kissed me. 'Thanks, Rob.'
'I guess we, or I at least, should thank you. God, Ellie, with four loads of sperm up you, I bloody hope you're safe.'
She put her arms round me and pulled us close, the feel of her mound pressing against my cock threatening to start the whole process again. 'Another day, we'll start using protection. You boys can get condoms, but there's no way I can get the pill for a couple of years yet, otherwise we'll just have to trust to my dates.' She leaned over and kissed Alan without moving out of my embrace. 'Just for the first time in my life, I wanted to feel the whole works, you know, what it feels like to have a boy cum in me bareback, and try to make me pregnant.'
'What will you do if you find you are?' I asked.
'I dunno. One thing, though, I'm not going to be talking about who the kid's father is. After all, ' she said, grinning mischievously, 'I won't know which of you, will I?'
Alan smiled. 'Ellie, ' he said, 'if you are pregnant, are you still going to let Rob and me fuck you?'
'As long as you two don't go doing it with anyone else, you'll be able to fuck me bareback, just like today as long as possible.'
The pressure of her body against my cock had finally had its inevitable effect. She eased herself away from me long enough to look down at it. She glanced across at Alan, and saw that all that talk had been enough to give him a semi-stiffy.
She sighed. 'I suppose you want to do it again?'
'Well, as long as you still have enough sperm swimming about in your pussy to sink a battleship ... I can't see that one more time will make any difference, ' I said.
She let go and grabbed me and Alan by our stiffening cocks and led us out of the bathroom into my bedroom. Being the eldest, I had the biggest bed. She flopped down on it and spread her legs invitingly.
'Screw it, you're right, ' she said.
So we did.