On that fateful day I came home from school as usual. I wanted to get on my computer and jack off to some of the hot pictures for a while.

I walked into my room and was startled to see Shannon sitting at my computer. I was about to yell at her for using my computer without permission but I suddenly saw what was on the screen. It was a video of a woman paddling a naked man’s ass.

She’d found my stuff! My face flushed and I wanted to run. I actually felt faint. What was I going to do??

She turned to me. “You sure do have a lot of this stuff, big brother.”

My mouth was dry as sand. I couldn’t talk.

“I’ve been looking at it for a couple of months. It’s really sexy.” She glanced back at the screen where the guy’s butt was getting very red. “Would you like a girl to do that to you, Stevie? Would you like me to do that to you?”

I still couldn’t talk. Had she really just said what I thought she’d said?

Her voice hit me like a slap, bringing me partly back to my senses. “Answer me, big brother!”

I swallowed the lump in my throat. “N-no. Shannon, you…”

She turned and smiled at me, her big brown eyes gazing into mine, drilling into me.

“Well, let’s just find out. Take off your shirt. Now, big brother!”

I was trembling. Was she serious? She knew about the stuff on my computer now. Knowing my secret she seemed to have an incredible power over me. And she was acting so dominant! I’d never seen her like this!!

I pulled my shirt off over my head and dropped it on the bed.

“Very nice. Now the pants.”

“I-I-…Shannon…”

“Now, big brother.”

“I-I’m not wearing underwear.” I mumbled out. Could this possibly be more embarrassing??

She giggled. “Perfect. Get them off.”

Now I realized I had a boner! My little sister ordering me around like this had gotten me hard!!

My hands were trembling so hard I couldn’t grab the button at first. Tears slipped down my cheeks. So this was what it was like to be dominated. This is it. A woman’s dominating me.

My hard dick popped out of my pants. I lowered them and kicked them off, looking down at the ground.

Shannon reached out and took a hold of my dick. I let out a soft whimper but didn’t even think about trying to stop her.

“Wow! You sure are hard, big brother. Do you like being bossed around by your little sister?”

“Y-yes.” I gasped.

“Good boy. Now get on your knees.”

I did as I was told. She stood up in front of me and I gazed down at her sneakers, wondering what she was going to do next.

She stood there silently, letting the tension grow. I was getting more and more afraid of her by the second.

Finally she said. “Look at me, Stevie.”

I slowly looked up to her beautiful face. She was gazing down at me with a superior smirk on her face.

“Do you think I’m pretty, Stevie?”

“Yes Shannon.”

She slapped me. “You should know the rules, Stevie! What do you call a woman when you’re kneeing in front of her?”

“M-mistress.”

“So, do you think I’m pretty?”

“Yes Mistress.”

“Would you like your little sister and Mistress to fuck you?”

I dropped my eyes. I couldn’t answer that.

She grabbed me by the hair and jerked my head back so she could look into my eyes. “Answer me, slave.”

“Y-y-y-yes M-mistress.” I sobbed.

“Yes what?”

“Y-yes I’d-I’d like you to…to…fuck me.” I moaned.

“Mistress.” I quickly added.

“You’re a little fucking pervert to want to be dominated and raped by your thirteen year old sister.”

“I-I-I know Mistress.”

“Well! Lucky for you I’m a little pervert too! Looking at your sexy pictures gets my pussy so wet! It’s given me a lot of ideas and I‘m going to try them all out on you, big brother. How does that make you feel?”

I didn’t know how to answer.

“S-scared.”

She giggled. “Good. Now take off my panties.”

I only hesitated for a moment before reaching under my sister’s skirt and gripping the edges of her panties. I pulled them slowly down her sexy young legs and she stepped out of them. I hadn’t seen anything at all but now I was holding a pair of soft cotton panties in my hand and I knew there was nothing on under her skirt.

“Do you want to smell them, Stevie? They’re nice and wet.”

I hadn’t thought about it til just now but suddenly I was dying to sniff my sister’s worn panties.

“Yes Mistress.”

“Go ahead you little pervert.”

I lifted the panties to my face and sniffed hesitantly. Then I crammed them up under my nose and breathed deeply, savoring the earthy aroma of my sister’s sweet young pussy and feeling her pussy juices on my face.

“Do they smell good?”

“Oh yes Mistress!” I gasped.

“Well here comes the real thing!”

She swung one leg over my shoulder and roughly shoved my face straight into her wet pussy!

“Lick, slave! Lick your Mistress’s pussy!”

I started licking. I’d never done this before. Luckily Shannon had never done it either so she really didn’t expect much. She did order me to go faster several times. I couldn’t believe I was down on my knees servicing my dominant little sister’s luscious pussy! I was in heaven!

Finally she grabbed me by the hair and mashed my face against her pussy.

“Oh yes!! Fuck yes, Stevie!! Oh God!!!”

Her juices flowed down my throat and I swallowed all I could.

She let go of me and I fell to my hands and knees between her legs gasping.

“Oh that felt so fucking good!” She gasped.

I knelt there silently in front of my sister while she recovered from her orgasm.

Finally she asked. “Did you like eating my pussy, Stevie.”

“Yes Mistress!”

She nudged my dick with her foot. “Do you want to do something about that little thing, now?”

“Yes! Yes Mistress!”

She giggled. “Weeellll, maybe later tonight. We’ll see what kind of mood I’m in. For the time being no jerking off.”

I sighed. “Yes Mistress.”

I was dying to cum here!!

“And I put a password on all those naughty pictures on your computer. No more looking at them without my permission.” She turned and cleared the screen.

“Yes Mistress.”

“Now I think you need a spanking, big brother.” She sat down on the edge of the bed and patted her lap. “Come on. Over little sister’s knee.”

I crawled to her and lay across her lap. This was even more humiliating than eating her pussy. My hard dick was pressed against her leg. She squeezed my ass, digging her nails into it. Then she took her hand away.

I waited. Waited. For the inevitable-

*SMACK!!*

“How’s that feel, slave?”

*SMACK!!*

“Like being spanked by your little sister?”

*SMACK!!*

“I’m only thirteen, Stevie, and you’re a grown man!”

*SMACK!!*

“You’re pitiful.”
*SMACK!!*

Shannon continued to spank and humiliate me. It was really starting to hurt! Was she ever going to stop?? I squirmed around on her lap.

*SMACK!!*

“Don’t you move an inch til I’m done with you!”

*SMACK!!*

I don’t know how long she spanked me but it felt like forever. Finally she pushed me off her lap. I quickly got up on my knees again.

“Now thank me for disciplining you and kiss my shoes, slave.”
I leaned down and submissively kissed the toes of her sneakers.

“Thank you for disciplining me, Mistress!”

“Okay now listen up, slave. This is how it’s gonna be. Whenever mom’s not around you’re my slave. You are to call me ‘Mistress’ and you may not wear clothes. Tonight I’m coming back here to have some more fun with you after mom’s asleep. I want you waiting for me naked on top of the covers. And remember what I said: No jerking off without my permission.”

“Yes Mistress.”

“Now I’m going to get my homework. You’ll be doing it for me from now on.”

Mom came home and I ate dinner with her and Shannon acting as normal as I could. I was sure she could tell something was weird with me but obviously she could never guess what.

Shannon was fantastic. She acted no different than she ever had. I wondered if she’d punish me for my poor performance.

After dinner I went back to my room and finished her homework. When I was done I brought it to her room. I listened carefully. Mom was downstairs watching tv.

I got on my knees and knocked softly on the door. Shannon opened it and I held out the papers to her.

“Your homework, Mistress.”

She patted me on the head. “Good slave. Dismissed.”

I turned and crawled back down the hall to my room.

That night I lay on top of the covers naked waiting for Shannon. I didn’t jerk off but my dick was rock-hard in anticipation.

Where was she?? Maybe she’d just fallen asleep. Well, even if she had I would stay here naked all night long just as she had commanded.

Suddenly the door opened and my sadistic young sister slipped in. I immediately got off the bed and knelt before her.

She smacked me on the head. “I told you to stay on the bed, slave!”

“Sorry Mistress!” I scurried back up on the bed and lay back against the pillows.

She stepped up onto the bed and straddled my waist. She dropped some piece of cloth on the bed but my eyes were glued to her. She grabbed the hem of her nightgown and pulled it up over her head and for the first time I got a good look at my sister’s fantastic body.

Her breasts had developed wonderfully and I was sure they would just keep on growing. Her stomach was trim and her long legs looked sleek and strong. My mouth was practically watering.

“Like what you see, big brother?”

“Y-yes Mistress!”
She sat down on my stomach. I could feel the heat and moisture on her pussy against me.

She picked up that cloth off the bed and took my left hand and tied it tightly around my wrist. Then she reached up and started to tie my wrist to the bed post. Her luscious young breasts were just inches from my face. I was dying to suck and lick them!! I was trying to get up the courage to ask for permission when she leaned back and started on my right wrist.

When she was finished she ran her hands slowly down my chest. “I like you this way, slave. Completely helpless.”

She started to tickle my exposed armpits. I bit my lip and squirmed underneath her.

“I haven’t done this to you in a long time, have I, Stevie? It’s even more fun when you just have to lay there and take it.”

This was driving me crazy! I wanted to just buck my hips and get her off! But I knew I couldn’t do that. I just bit my lip harder and endured the torture silently.

She finally stopped and started touching her own body.

“Do you like my breasts, Stevie?” She said, squeezing them.

“Yes Mistress. Very much.”

She giggled. “I love how big they’re getting!” She leaned forward and thrust them in my face. “Kiss them.”

I eagerly started kissing my sister’s perky breasts. I started licking and sucking. They felt so good! So soft! And the taste of her skin was just incredible!

“Yeah! That’s right! Suck my nipples, big brother!” She gasped.

She shoved them further against my face, pressing my head against the headboard.

“Mmm, okay, okay.” She sighed, moving back and taking her gorgeous breasts out of my reach. “Very good, slave boy. Now to introduce you to your Mistress’s ass.”

She stood and turned around and my eyes were glued to her incredible ass. She crouched down and it bumped against my face. She leaned forward a bit so it was right in front of my face.

“Go on, you little slut. Kiss you Mistress’s ass.”

I eagerly leaned forward and started the deliciously humiliating chore of kissing my sister’s ass.

After a few minutes of kissing she thrust her ass back, pinning my head to the headboard and my face between her ass cheeks. I could barely breathe. She leaned back, putting most of her weight on me.

“I really love those face sitting videos, Stevie. I’m going to be using your face for a seat a lot! Would you like that, big brother? Of course it doesn’t mater if you would or not because you’re just my slave. Say that, Stevie. Say it into my ass.”

“I’m your slave.” I mumbled into her ass, gasping for whatever breath I could.

“Say ‘I’m my little sister’s slave and I worship her ass.’”

“I’m my little sister’s slave and I worship her ass.”

She took her ass away from my face and I gasped for breath. She turned around and sat down on my legs.

She took my cock in her hand and started sliding it up and down.

“Mistresssss…” I moaned.

She giggled. “You’ve got such a pretty cock here, Stevie. It’s pretty big too.”

“Thank you, Mistress.”

“Now I’m going to ride it. Time to deflower you, big brother!”

She moved forward and her hot, wet pussy rubbed against my dick.

“Ohhh, Sha-Mistress!” I gasped.

She grabbed my dick from behind and put the head into the swollen lips of her pussy.

“Mistress…I…I’ve heard it’s-it’s painful for a girl…to lose her virginity…on top. Maybe you should…I mean…”

She giggled. “Aw, so sweet of you to be concerned about your little sister.” She leaned forward and kissed me on the cheek. “Don’t worry. I popped my cherry a long time ago. Masturbating to the stuff on your computer. Now I’m ready to take my brother’s big, hot cock!”
With that she slid back and engulfed my entire cock in her hot, tight pussy.

“Oh fuck! You are sooooo big!” She gasped.

She started sliding slowly back and forth on it.

“Oh god that feels good, Mistress!”

Shannon started bouncing up and down on my cock. It felt incredible! Her breasts bouncing, her strong young legs flexing, I wanted to touch her so bad! It was so fucking frustrating!

She was in charge here. My sister. My Mistress. Fucking me. Raping me. And there wasn’t a damn thing I could do about it!

Suddenly Shannon slid all the way down on my cock and her pussy gripped is tightly.

“Oooohooooohhhhoooohhhhhhh” She moaned with her head thrown back.

She put her hands on my chest and leaned forward, looking down at me. Her eyes were slightly glazed.

“That was fucking incredible!! I’ve never felt anything that good in my life!!”

“Sh-M-Mistress!” I gasped. “Please. Let me cum!”

“Huh? Oh. Oh yeah. Well, since you’ve been such a good slave I guess I should let you cum too.”

She started slowly pumping up and down on my dick again. She gradually started to pick up speed again.

“Ohhh, it feels sooo good! I think I’m going to cum again!”

“Oh! I’m cumming too! God, thank you, Mistress!”

Her tight, incredible pussy clamped down on me again just as I started to spurt gallons of cum inside her.

“Oh thank you, thank you, Shannon!! Thank you so much for being my Mistress!! You’re all my dreams come true!!”

She slapped me.

“Shut the fuck up!” She hissed. “Mom will hear!”

I realized I’d been practically screaming. I clamped my mouth shut and just moaned as the most incredible orgasm of my life swept my entire body and my dick, imprisoned in my little sister’s tight, perfect pussy emptied it’s massive load.

“Ohhh that was unbelievable!” Shannon purred as she put her head on my chest and just lay there on top of me.

Within seconds I could tell she was asleep. I was exhausted. I wanted to close my eyes and sleep with my Mistress. But I knew if we both fell asleep we might very well sleep til morning. And then we’d both be in real trouble.

I lay there for a long time, letting her rest on top of me. Finally my eyes were closing. I couldn’t stay awake any longer. I had to do something.

I leaned forward and nudged the top of her head with my lips.

“Mistress. Mistress. Wake up. I’m sorry.”

“Hmm? Wha?”

She looked up at me and smiled. She wrapped her arms around me.

“Wasn’t that incredible, Stevie? Hmm?”

“Yes. Yes it was, Mistress. But now I think-Maybe you should-”

“Oh yeah. I guess the fun’s over for tonight, huh?”

She reached up and started untying my right wrist. She was sleepy and laying across me and her breasts were pressed against my face.

“Well don’t worry. I’ve got all kinds of things planned for my little slaveboy. Tonight was just the beginning.”

“Yes Mistress. I can‘t wait, Mistress.”

She sat up on the edge of the bed and yawned while I rubbed my aching wrists.

“I’m too tired to walk all the way to my room, Stevie. Get down on your hands and knees.”

I was exhausted too but of course I would do anything for Shannon. She sat down on my back and slipped one of the long pieces of cloth between my teeth. She held both ends like reigns and slapped them lightly against my shoulder.

“Okay. Go Stevie!”

I crawled to the door and she opened it. I crawled down the hall naked with my sister riding on my back and then into her room where she laid down on the bed.

“Oh hey, I forgot. Lick all your sticky cum out of me, slave.”

“Huh? Oh yes Mistress.”

I crawled up between her legs and eagerly started licking her sweet pussy. I’d seen guys perform this deliciously humiliating chore on the internet lots of times. I’d even tasted my own cum before. I didn’t like it but it wasn’t bad either. And mixed with the taste of my sister’s amazing pussy it was incredible. I stuck my tongue in as deep as I could, determined to clean up all my cum and satisfy my Mistress.

“Oh yeah that’s it, Stevie! Get in there deep! Get all your hot, wet cum! Oh that feels good! Lick faster!”

I licked until my sister’s body shuddered with yet another orgasm.

She reached down and petted my hair like I was a dog. “Good boy! That’ll be all for tonight.”

I stood up and pulled the covers over her. I tucked them around her and leaned down to kiss her cheek. She was already nearly asleep.

“Goodnight, Mistress.”

“Goodnight.”

I turned to go.

“Hey wait. Come back here. I almost forgot.”

I went quickly back to my Mistress.

“Hand me that cloth.” She pointed to the one that had been in my mouth. “Now turn around.”

She tied my hands firmly behind my back.

“Okay. You can go. I’ll untie you in the morning.”

“Um, Mistress…I…I have to pee…”

“Well then you’ll have to sit down like a girl. Go on. I’m fucking exhausted.”

I hung my head. “Yes Mistress.”

I walked to the bathroom naked with my hands tied behind my back and sat down to pee. Then I went back to my room, carefully opening and closing doors behind my back and lay down for a long night in bondage.

I woke up and was scared until I remembered that Shannon had tied my hands behind my back. I lay there thinking about the incredible night of domination with my dick sticking straight up. Of course I couldn’t touch it and even if my hands were free my Mistress had forbidden it.

Suddenly Shannon slipped into my room.

I stumbled quickly down to my knees.

“Good morning, Mistress.”

“How did you sleep, slave?”

“Not very well, Mistress.”

“Don’t worry. You’ll get used to sleeping in bondage eventually.”

“Yes Mistress.”

“Okay. I’ll take that off for you.”

She went behind me and leaned down to untie my hands. Then she immediately tied the long piece of cloth around my neck. She walked around in front of me, holding the other end of the cloth.

“Come, slave.”

She pulled me to the door on the make shift leash and listened carefully.

“Coast’s clear.”

She opened the door and dragged me out into the hall naked. She led me down the hall and into the bathroom. There she took the leash off me.

“Go ahead and pee if you need to. But sit down for cripes sake!”

I did even though it was incredibly embarrassing to pee in front of my sister.

“Okay now crawl into the tub.”

Shannon slipped her nightgown off over her head while I knelt there in the tub. Then she stepped in naked and straddled my fake with her pussy pressed against my lips. I waited anxiously for her to give the order to lick.

“Okay, now I have to pee. Open your mouth.:”

“What??”

“Open your mouth and swallow as much as you can, slave.” She snapped in her cold dominatrix voice.

I obediently opened my mouth and tried to prepare for the worst.

Hot urine flowed into my mouth. I gulped it down, trying not to think about what was happening. She must have been holding it all night! I drank most of it but some dripped down my face.

Finally she was finished. That wasn’t as bad as I thought.

“Lick me clean.”

I probed the folds of her pussy with my tongue for a moment then she stepped back.

“Now lick your lips. That was very good, Stevie. I‘m impressed.”

“Thank you, Mistress.”

“You were just born to be a slave weren’t you, Stevie?”

“Yes Mistress.”

“Did you like drinking my piss, slaveboy?”

“Yes Mistress.” I hadn’t liked the taste but the submission and humiliation had been incredible!

“Well that’s good since you’ll be doing it from now on. I expect you to get good enough that we can do it outside of the bathtub.”

“Yes Mistress.”

“Okay now let’s shower.”

She started the water and ordered me to wash her. I was in heaven intimately touching every inch of my sister’s fantastic young body. I washed her beautiful golden hair and then she told me to wash myself.

When I was soaping my dick she let me jerk off for a few minutes but stopped me before I came.

When I was done I dried my amazing, dominant sister’s hair and body she had me help her get dressed.

She pushed me up against the wall and squeezed my still hard dick.

“Okay, I’m going down to breakfast. Then you can get dressed and come down.

“I want you back here right after school, slave. I’m going to do sooo many things to you. Painful things. Humiliating things. Try to guess what they’ll be while you’re at school today.” She grinned evilly.

“Y-yes Mistress.”

She slapped me on the ass and walked to the door. She listened for a moment and then slipped into the hall.

I slowly started to get dress, already consumed with thoughts of what my sister was going to do to me tonight.