Even at 18, I'd often slept in my sister's bed. We shared a room and always had. I was scared of the thunder and lightening and had slipped in beside her. She was sweet and cuddled me. It was so nice to feel her arms around me. I had always been the timid one, Suzie had always been the tough one. After a few minutes she sat up and pulled off her T shirt and I felt her slip of her knickers.
"Get yours off too, Simone. It's going to be hot in here with both of us." I did as she was told, the feeling of envy that her breasts were a little bigger than mine still washed over me. "Come on, your breasts aren't that small and they are so lovely." Naked now I felt her cuddle me again. It actually felt hotter now that we'd both shed our clothes. I could feel her softness against me, I could smell the hot scent of her skin and hear the soft beat of her heart as my head was pulled to her chest blanking out the sound of the thunder.
I awake in the middle of the night, laying with my bottom pushed into her and feeling the mounds of her breasts pressing into my back. Her hand was on my breast, it was moving so she wasn't asleep. She played with it expertly. My body became soft except my nipples, they were rock hard. At one point I put my hand on hers and made a half-hearted attempt to remove it but she whispered for me to stop and move my hands away. Of course I did and my stomach began to ache and that buttery feeling was coming between my legs. I found myself pushing back against her even though I whispered to her that it was wrong, that I was her sister. She told me to be quiet. On and on her fingers played until my breasts were burning and aching. Her fingers finally left me only to slip down my body. I did try and stop her from reaching her goal but my efforts were as nothing to my yearning. Her fingers slid over my mound and forced me to lift my top thigh allowing her access. Her hand cupped me, cupped my pussy. It felt like she had taken possession of it.
"No. No. Stop. Suzie. Please."
"Be quiet. Just enjoy it. I want you to cum for your big sister. Cum for me Simone."
Her fingers had slid between my lips, finding my honey and pulling it over my clit. They rubbed unmercifully over my sensitive spot until I was gasping and rubbing against her.
"Cum for me Sis. Come on."
I did. It was impossible not to. I just gave in to it and felt my body go rigid for hours or mini seconds, it was impossible to tell before it thrashed around out of all control.
"Thank me little Sister."
"What?" I managed to gurgle.
"Thank me for what I gave you. Come on."
"Thank you Suzie."
In the morning I woke to an empty bed. Suzie was already in the shower. The world carried on. Although it was holidays and we needn't go to school there were still things that we needed to do. Our parents owned a bar and were out most evenings. Our older brother, Steve, was at college, coming home only at weekends and not every one.
A few nights later, when I was still laying awake, Suzie called out.
"Don't you want to sleep with me anymore after I gave you pleasure?"
"Yes. Of course. It's just... We're sisters."
"Did that make a difference to your orgasm, sister?" I blushed.
"No of course not. OK. Can I?"
Yes. Come over now but get rid of your nightie and knickers."
Feeling hot simply because I was displaying my nakedness to her, I threw them onto my covers and slipped in beside her under her duvet. Her arms collected me, pulled me nearer. I could feel her heart beating against me, knew mine was beating wildly too. Her mouth brushed my lips. Then captured mine in a kiss. Not a sisterly kiss, well it was but not a sisterly kiss as I would have recognised before. She was above me, her breasts rubbing against mine, a thigh over one of mine and pressing against my pubic bone. I couldn't help but respond, couldn't help it. I felt myself rubbing against that hard thigh, wetting it. I felt her wetness against my side. Her tongue was in my open mouth as I began to shudder and squeal.
"Do you want you sister to make you cum, little one?"
"Please. Please." I gasped. She slid her hand under her thigh and found my clit. It didn't take long. I was becoming addicted to this I thought. Soon only her weight on me stopped me thrashing about on the bed.
"You are a wicked girl aren't you?" She mocked me as she kissed my hot face. "Fancy asking your sister to finger you! Can you remember when we used to play Mommies and Daddies. I think you can call me Mommy in future, not Suzie. When you want something like this you'll know exactly how wicked you are. Now do you want to do anything for my pleasures?"
"Oh please. Yes."
"Mommy!"
"Yes. Please can I give you pleasure Mommy?"