The bed was shaking.
Almost imperceptibly, but it was definitely shaking. I suppose that was what woke me.
I say 'woke' but, still more than half-drunk, and with the beginnings of hangover, I struggled up to consciousness trying to make sense of the motion. No earthquakes here, no subway trains close by.
What?
Soft breathing sounds next to me on the bed. I turned my head, carefully, so as not incite a return of the dizziness and looked across to my right. Her eyes were closed and her face was relaxed now, after all the earlier outpourings of emotion. It wasn't a 'pretty' face, strong jaw & high cheekbones made it striking, but a long way from classically beautiful. Left knee slightly raised and the flowery summer skirt beginning to slide up her thigh.
I stared at the exposed portion of her leg with an almost intellectual interest; or was it just the focus/non-focus from the alcohol we'd consumed? I knew she swam and exercised regularly, but I'd not really realised what that could mean for her muscle definition. Either there was no fat there at all, or was there was a tenseness which didn't match the relaxation in her face?
Was she asleep? The slow gentle rise & fall of her chest and her face suggested as much. Looking at her I'd forgotten the almost subliminal shaking. But now I noticed her right arm, furthest from me, was moving rhythmically. Was she? Could my sister be lying on the bed next to me and ... masturbating?
---
I suppose I should back up a bit and explain how we got here. Anna and I had gotten drunk, very drunk, at lunchtime, poured out our troubles to each other and after several hours found ourselves struggling to keep our eyes open and decided a 'lie-down' was necessary. Quite why we'd chosen to lie down on the same bed escaped me. It was big enough for sure, but it would have been more in the nature of our brother - sister relationship for her to use the spare bedroom.
--
Still, there we were, next to each other, on top of the bed, somewhere between awake and asleep, between drunk and hung-over. I looked again, yes, what I could see of her arm was still moving, back and forth. I raised my head a fraction so I could see her hand. It was under the waistband of the skirt, and now I could see the rise and fall of her knuckles under the light material.
The growing certainty of what she was doing seemed to short-circuit the rational parts of my brain and go directly to my own groin. God I was hard! Harder than I'd been for months. But, my sister?
No, I'd never thought about her like that in all the forty or so years we'd shared on this planet. We'd never tried anything as kids, never even kissed each other beyond a peck on the cheek as adults. It didn't mean we didn't love each other, as a family we just weren't that tactile. Even when earlier we'd worked our way through two bottles of half-decent Bordeaux, and then finished off with an immoderate slug of Talisker (a mistake that last, my head was telling me) we'd sat next to each other on the sofa, cried a bit about the ending of our respective relationships, but never so much as hugged each other for comfort.
Now, here she was, rubbing one out next to me. My erection was uncomfortably constrained in my pants. Checking her eyes were still closed, I slid my hand in to re-arrange things. It still wasn't that comfortable so I left my hand where it was, stroking gently up and down my shaft as I watched her.
Was she doing this unconsciously in her sleep? Or was she awake, and just assuming that because she'd not heard me move, that I was still asleep? Long moments passed as I watched and thought, for the first time, of my sister in sexual terms. She was a big girl, nearly 5' 10", and had been a little chubby as a teenager, but that was long gone now. Now with her big bones, strong features and toned muscles she just came across as powerful, could be almost intimidating.
Earlier, when she'd been telling me of the breakdown of her long-standing relationship she'd been anything but powerful. Her insecurities about her body had been laid bare along with a vulnerability that I'd not really been aware of before. I remembered that she'd told me her bra-size, and that her ex had described an A cup on a 38" chest as out-of-proportion, and started to wonder what they would look like in the flesh.
As if on cue, her nipples were just now erect enough to just be seen through her blouse. Was her hand moving a bit faster now? My own stroking just wasn't enough for the growing level of excitement I was feeling but there wasn't room for more until I reached down with the other hand to release the fastener at the waist.
Alerted by that tiny sound she stopped her hand suddenly, holding her breath, but keeping her eyes closed. I froze likewise, tried to breathe slowly and deeply to make it sound like I was still asleep, and closed my own eyes in case she decided to look at me.
Evidently I succeeded in convincing her that I was still out of it, after a few seconds I felt the motion of the bed start up again. I risked opening my eyes. Yes, she was back to it. After a few moments she raised her right leg too, knees apart to give enough access to really work at herself. It seemed as though eyes closed were the order of the day for her, which meant I could watch to my heart's content, although I tried to keep my breathing steady and deep to give at least the aural impression of a sleeper next to her.
Her own breathing was now speeding up though, interrupted by tiny gasps; and the shaking of the bed was more noticeable. Her nipples had grown too, pushing the light fabric into sharp peaks. An image of small breasts with huge nipples flashed across my mind. My excitement ratcheted up another notch, and my erection was almost painful. Even with the waistband undone I couldn't get my whole hand around my erection as I usually would, and I was obliged to stroke it with just two fingers and thumb. What with trying not to shake the bed myself, the different sensations were exquisite and frustrating at the same time.
Evidently my actions lacked the necessary discretion, because suddenly Anna turned towards me, eyes flying open.
'Rob?' she gasped.
'Anna' I paused for a moment as her eyes seemed to grow as big as saucers with the realisation of what we were both engaged upon, 'Don't stop now. please...'
A whimper, almost a whine, escaped her lips as she stared at me then, seemingly against her will, her hips started to buck against her hand.
'NNNNNggg!' a sound that started as a moan and end as a grunt.
Then, 'Fuck, I'm...'
'Coming!' I replied, and promptly did so.
'Ooooohhhh!' a long drawn out wail as Anna evidently climaxed, her back arching off the bed and her eyes rolling back in their sockets.
Seconds of silence seemed to stretch into minutes of embarrassment, both studiously avoiding looking at each other.
'Rob,' ' Anna' we spoke each other's names at almost the same time. I knew enough to keep quiet while she continued:
'I'm sorry, I didn't meant to...'
'Don't be,' I replied, 'it was about the most exciting thing I've seen in years'
'But...'
'No buts' I interrupted her 'we probably both needed that, even if doing it with a sibling isn't perhaps the most usual thing'.
'There's only one thing though...'
'What's that?' she asked with a worried look.
'I need to get rid of the pants & underwear, I've made a bit of a mess.'
I got up and turned my back to the bed, undoing the zipper as I did so.
'No, turn round, I want to see' she ordered, to my surprise. I did as I was told, though.
'Eeww! You did make a mess, didn't you?' now, she was grinning at me.
I threw the clothes into the laundry basket and slipped into the bathroom, where I quickly sponged away the evidence of what, for me, was a fairly substantial ejaculation. When I came back into the bedroom Anna was still lying on the bed, but now giggling softly.
'You look a bit silly in just a shirt and socks' she smiled.
'I'll get some more pants out...'
'No, just lose the shirt ... and socks'
'Why?'
'Call it curiosity, but I've not seen you naked since you were nine years old'
'Well, I've not seen you in the buff since you were seven' I challenged her back, feeling slightly ridiculous with my dick hanging out in plain sight.
