This is a work of fiction. All characters are over eighteen years of age.
I don't know how much you know about sleepwalking. I didn't know anything, until my sister started doing it. Our Mom said don't worry, she used to do it too as a kid. I looked into it myself and found out that
nobody
really knows
anything
about it. That kinda worried me, I'm kind of an over-protective big brother I guess, but at least it looked mostly harmless.
It started when Sabrina was around ten. First it was sleep walking. Then came sleep-coloring. She'd make drawings at midnight that she didn't remember doing the next day. As she got older it changed to other weird things. She'd mime going fishing in the kitchen, cook imaginary meals in the basement, it was spooky. Her eyes would be open like she was awake but she'd never remember anything. And if she woke up she'd be mad and confused. It petered out over time and we all kinda forgot about it.
Well last year Mom and Dad got divorced. Sabrina and I stayed with Mom at the house, we both went to college nearby. It must have been the stress, 'Brina started sleepwalking again. I found her in the hallway one night and led her back to her bed. Sometimes that works, sometimes not. She climbed in bed no problem so I sat in a chair to watch her for a second. Sometimes she gets right back up.
Not this time. She was still zonked out, her eyes were open and glassy, but instead of just lying back down she piled her pillows up and before I knew it had pulled her sleep shirt over her head and laid back against the headboard. I admit it, at first I just stared. My little sister's a fox. Her titties are perfect C-cups, her nips were already hard. While I was frozen she'd pulled her pale white panties to one side and started rubbing her pussy.
She had light blonde hair down there too, she'd trimmed it into a neat triangle. Her pussy lips were thick, she stroked a finger down the center and shuddered. This whole time, her eyes were open and glassy, staring at nothing. It was spooky and sexy all at once.
Her pussy started getting wet as she stroked herself. She started moaning, and I almost lost it. Talk about weird! She was smiling an erotic smile, every part of her face was expressive but her eyes, she looked like she was seriously pleasuring herself, and at the same time looked like a robot or something. I got up to leave, it was freaking me out too much. That's when she started moaning
my
name.
"Oh Drew! Yes, fuck me, I need your cock!", Sabrina panted in her sleep. I froze again. My eighteen year old sister was begging me to fuck her, in her sleep! Oh this was too good! Sure it was sexy as hell but first things first, I raced to my room and back, twenty seconds and I had my phone out, recording this. No way she'd believe me otherwise.
I was getting a hard-on from watching her, she was really getting into it. Her pussy was now open wide, looking nice and juicy. Her fingers were making a squelching sound as she pistoned them in and out. I'd turned the lights back on to see better, it wouldn't make a difference to Sabrina. Her clit was standing tall, I was tempted to give her a lick but I didn't know what would happen.
She was still talking dirty. "Yes, right there, oh fuck me brother, fuck your slutty little sister's aching cunt! God I need your cock!" Man this was hot! I reached down and gave myself a squeeze, I was going to jack off to this later, guaranteed! Sabrina reached up and hefted a tit to her mouth and sucked a nipple.
"Mmm, Drew, your cock feels so good inside me! You're going to make me cum, what a nasty brother, fucking his slut of a baby sis! Yes, ram it in hard, oh god! Cumming!
Cumming
on your cock!" Sabrina's chest and face grew flushed, her whole body started quivering.
Sabrina came for a solid minute, shaking around her fingers and moaning. Then she curled up on her side and finally closed her eyes. I turned off her lights and watched her a while longer, she finally started breathing deep and slow. I covered her with a blanket and went to my room to jerk off.
I just sat on the recording for a few days, life kept happening. Then it was the weekend, no Saturday classes for either of us, and Mom gone for a few hours at a Realtor's seminar. After a late breakfast I wandered into 'Brina's room, she was doing homework for her Chem class. "What's up, big brother?" she asked brightly.
I didn't answer, I just smiled and hit play on my phone. I was watching the screen so she got up to look over my shoulder. It was at the part where she starts yelling my name, I had the volume up all the way, she could hear herself before she saw herself.
"Yes, ram it in hard, oh god!" the tiny Sabrina was saying. My sister's hands flew to her mouth, her eyes got huge. "Drew, where did you get this, oh my god!" Her face got beet red. "Wait, is that my bedroom? And my eyes, oh no!" 'Brina realized what happened as soon as she saw her staring eyes in the vid. She was trying to grab the phone away but I was too tall for her.
"Sabrina sleepwalks again!" I said, miming a banner headline. "Only now it's X-rated!" I was teasing her a bit, I mean I
am
her big bro, it comes with the territory. She looked like she might lose it so I relented. "Sorry, 'Bri, I know it's not funny. And I didn't mean to see this, I mean you do just kinda wander sometimes. I was making sure you got back in bed when... when
this
happened."
Sabrina gave me a hug. "I know, bro, it's happened before. Not the sex stuff! You know what I mean. But this..."
"... is pretty heavy stuff." I finished. I knew what I wanted to do about it, I'm nuts about my little sister. She's cute and funny and if I could marry her and get away with it I would. Plus there's the whole 'slammin' bod' thing.
Sabrina is five seven exactly, with wavy brown hair and brown eyes. She's got Mom's build, narrow frame with nice tits and ass, just a walking wet dream. Her personality is warm and bubbly and generous. I'd always loved her like a brother, while secretly hoping for more.
"How long have I been doing this?" Sabrina asked. She wasn't as mad as I'd thought she'd be, more resigned I guess. I wondered if she'd been expecting it to come back.