It was the end of May, college was almost over. I was just waking up when my step Sister Susan crept into my bedroom. Before I could say or do anything she was on top of me. She was straddling my chest and had my arms pinned by her knees. I am fully awake now.

Susan looks down at me and smiles, “Finals are next week and I am stressed, Little Brother. I think we both could use some stress release, what do you think?” She gets that evil grin on her face that can mean only one thing.

She opens her bathrobe to reveal her naked body. She has gorgeous large breasts. She cups her left breast with her hand and starts squeezing her nipple. With her right hand she starts rubbing her Pussy.

She looked up to the ceiling and said, “Yes, I need some fun this afternoon. I will never understand what you get out of this, and I don’t care. I will enjoy myself, and you will suffer for me.”

She starts squeezing both her breasts now, “So Little Brother, what do you say?”

Susan leans down and we are eye to eye now. I say the only thing I can, “Yes Mistress. Whatever you want, I will do it.”

She smiles that evil grin that I have learned to fear, “I am going to hurt you very badly.” She then kissed me hard on the lips and forced her tongue into my mouth. “Usual place Little Brother.”

She jumps off my bed and is out the door. My dick is rock hard. It is hard to believe this all started less than a year ago.

My experience with BDSM began like many, from the internet. My parents didn’t monitor what I did on the internet and as soon as I got interested in girls, I found Porn. Once on the Porn sites it wasn’t long till I found the BDSM category, I was hooked. Deep down the idea of being tortured and dominated by woman really connected with me. From that point on it was all I ever fantasized about.

One day I was cruising sites for mistress and I came across one that included cigarette torture in the list of services she provided. Her picture gallery included one specific picture. She was leaning forward, her massive breasts were hanging down and she was grinding her cigarette out in an ashtray in the foreground. I was instantly hard as a rock and I masturbated to the picture. I imagined my balls in that ashtray.

The next day I was in the shed behind our house, with a copy of that picture and a cigarette I had stolen from my step Sister‘s room. I had seen Susan smoking behind the house when Dad and Mom were not home, so I knew she had some. That day, and on many to follow, I would experiment with lightly tapping the cigarette against my balls while I came.

My step Sister Susan and I were almost the same age. She was a few months older. We hated each other’s guts. She hated my Dad and I hated her Mom. Our parents were both divorced and they had remarried to each other. They didn’t care what we wondered. They just expected us to get along. We didn’t. We tried to avoid each other as much as feasible. We had different friends and went to great lengths to avoid each other at college.

It was the begin of my senior year, I had just turned 18. It was August 28, a day I will never forget for the rest of my life. College was out early that day. My Sister was with her friends and I had stolen another one of her cigarettes. This afternoon I had gotten some tape and was gonna tape the cigarette to my balls to see how long I could stand it. I had decided to wait until it was burning me and then I would try to cum.

I was in the shed and had everything set up. I had a copy of that original picture I had found with the mistress grinding her cigarette out. I lit the cigarette and taped it to my balls. I could feel the heat of it as it slowly burned closer. I was jerking off fantasizing about Mistress using my balls as her ashtray. It was getting hotter and hotter. I was just seconds away from cuming.

Suddenly the door to the shed exploded open. Susan stepped in with her arms on her hips. Her freckled face and her auburn hair are backlit by the light outside. She cocks her head to the side and smiles at me, “Well Little Brother, is this how you have been wasting my cigarettes!” Right then my balls are really burning. I was frozen for several seconds then I started crying out. I fumbled around as I tried to pull the cigarette off.

When I finally got the cigarette off I threw it to the ground. I was frantic. I tried to get up and pull my pants up all at the same time. My face was burning red from embarrassment. My Sister is bigger than me and she is faster. Before I could get up she shoved me down, hard.

“And what is this?” she says as she leans down and picks up the still smoldering cigarette.

“It’s nothing,” is all I can think to say. I was so scared.

Before I can try to get up again she is sitting on my chest and has my arms pinned by her knees. She is bigger than me and has at all times gone to great efforts to drive home the fact that she is older and bigger and she hates my guts.

I am staring up at her and her big breasts. I have never been this close to them before. She looks at the cigarette and then pulls the tap off. She puts it in her mouth and takes a drag. She looks down at me and blows smoke into my face.

“I have known for a while that you have been coming out here to play with yourself,” she says. “I was going to tell Mom and Dad, but they are such pussies. They would never punish you for this. Not the way I am going to.”

She looks around and finds the wrinkled picture of my Mistress sitting next to me.

She picks it up and starts looking at it. “She is very nice. I see we have similar tastes, but I think for different reasons.” She points the picture at me and says, “You like this?” I look at the picture and cannot control myself. I look at my Sister‘s breasts just for a second but she catches it. She smiles and says, “Little Brother, how dare you. I am your Sister!”

My face is turning red again. I struggle to get up. I try to turn to the side, but my Sister has me pinned. She takes another drag on the cigarette. “Like I said, this isn’t the first time I saw you come out here. You think I wouldn’t notice my cigarettes disappearing? How pathetic can you be.”

We stop struggling and I look up at her. Is she gonna tell Mom? What will happen? What will Mom and Dad do to me for all this? I begin shaking, “Please let me up.” I plead with her, “Please please don’t tell Mom and Dad. I will do anything you want”.

Susan starts to smile at me. She says nothing. But very very slowly she starts to unbutton her shirt. I can see her cleavage as she finishes unbuttoning. She takes the cigarette out of her mouth and leans closer to me, we are eye to eye now. “I watched you burn yourself last week. You like it don’t you? You like the pain of being burned.”

I am shaking too hard to say anything. I don’t know what to say. What is her game? What is she gonna do to me?

“Well Little Brother I must confess, I enjoyed watching you.”

My eyes glance down to her breasts in her open shirt and then to the cigarette in her hand and back to her eyes. I am confused, I don’t know what is going on. I say, “I am sorry, I will never do this again. Please just let me go.”

She sits back up and continues smiling at me. It is the same sinister smile as the Mistress in the picture. “Don’t be sorry, like I said, I like the picture of your Mistress and I liked watching you burn yourself.” It took me a few seconds to figure out what she had been saying. She said she was gonna punish me and she enjoyed watching me burn myself.

Susan got off my chest and freed up my arms. She sits next to me, facing me. She takes another drag on her cigarette. She took my left hand and placed it in her shirt on her breast. She isn’t wearing a bra. Her skin feels soft and silky smooth. I feel around her breast till I discover her nipple. Smiling, she closes her eyes and looks up. “Grab your cock and get ready,” she said.

My heart is pounding in my ears. My dick is so hard. With my right hand I begin madly jerking myself off. “Little Brother, you will never again steal my cigarettes. Do you hear me!” I am madly jerking. Through gritted teeth I say, “Yes Mistress, I will never do it again.”

And with that my Sister looks down, takes a final drag and grinds the cigarette out in the middle of my balls. It hurts so bad. I arch my back in pain, but I don’t scream. I just shoot my load.

Susan lies down next to me and I feel her doing something. It takes me a second to realize she has unzipped her pants and has put her hand down into them. She is playing with herself. I don’t know what to do so I just lay there in silence next to her until I feel her stiffening then relax. I think she just came.

After a few seconds she stands up. She throws the dead cigarette to the floor and closes her shirt and pants. “Clean this up Little Brother and get back to the house. Mom will be home soon.” She grabs her lighter from the table and walks out the door and I am alone again.

Over the next couple days things are back to ordinary. Susan yells at me for everything I do. Our parents just ignore us. Everyone just seems to act like nothing happened. But when I am alone I look at the mark on my balls and I remember. I don’t know it yet, but things are definitely not the same.

About 6 weeks later I was eating lunch in the cafeteria when Susan sat down next to me. She leans over and whispers in my ear, “Meet me in the student parking lot after school, Little Brother.”

Susan has never spoken to me like this before. At college we pretend the other doesn’t exist, something is going on. Her real father had given her a car when she got her license. But she had never let me ride in it. I didn’t know why she wants me to meet her in the parking lot.

After college I found her in her car, I walked over and asked, “What’s up?”

She says, “Get in, we are going for a drive.” I get in the car and we drive away. After a few minutes I see that we aren’t headed towards the house. “Hey, this isn’t the way home,” I say. She smiles and says, “No Little Brother this isn’t.”

“Then where are we going?” I ask.

Susan reached over and put her hand on my leg, right next to my groin. “I have a surprise for you Little Brother. I think you will enjoy it. I know I will.”

With that she looks over and I see that same evil grin from before.

We drive to a gas station on the edge of town and she pulls in, “Wait here, I have to get something.”

She goes into the station and comes back a few minutes later with two Cokes and a pack of cigarettes. She gets into the car and hands me one of the Cokes. “Little brother, you still owe me for some more stolen cigarettes. I am going to make you pay for them today.” My heart starts beating harder.

She drives us out of town on an old dirt road. After a few minutes we come to an old abandoned barn. She pulls in behind the barn. She gets out and gets a backpack from the trunk that is clearly full of something. “Come on Little Brother, this way,” she says.

I follow behind her as she walks inside. I am excited and terrified all at the same time. All I can think about is what happened before in the old shed.

The inside looks a lot better than the outside. There is a hole in the roof that lets light in, there is hay laying everywhere but it looks new. It doesn’t look that weathered.

Susan sits on the floor and motions for me to join her. I sit facing her and open my Coke. I take a big sip and try to settle my nerves.

“So, let’s talk,” she says. “We both had a lot of fun last time, but we need to get a few things straight. First we aren’t really brother and Sister. So those labels shouldn’t freak us out. And we really don’t see each other that much so that should help avoid any complications when we are outside of here.” She gestures to the barn around us.

“But while we are in here we can have a little fun with each other. I enjoyed what happened last time, and I could see that you did too.” She smiles at me as she catches me looking at her chest again. “Not yet Little brother, up here.” She waves a hand in front of my face to get me to look up.

“So what are you into?” she asked. “I know you like cigarettes and ball torture, what else?”

Her frank and very matter of fact attitude confuses me. I get the feeling she is much more familiar with BDSM then I would have expected. But after our last get together I guess I shouldn’t have been surprised. I have never talked about this with anyone. I don’t know what to say. But she has a curious smile on her face and is just waiting for me to answer. “Well, the only real experience I have is our last time together. Before that I would play with myself with a cigarette from time to time.”

“My cigarettes you mean!” she says.

“Yes, your cigarettes, I am sorry.”

“Don’t worry. I will make you pay for them. What else?” she said.

“I have had fantasies about a lot of stuff over the last couple years. Being whipped, and spanked. Being tied up, and all different kinds of CBT play. I really got interested when I found that picture of the mistress smoking and grinding her cigarette out.”

Susan had been listening, nodding as I talked. Now it was her turn.

She took a drink from her Coke and said, “Well, I am very sadistic. I have fantasies about controlling men, and women, and punishing them when they don’t do as I say. I have a little more experience than you do, you’re not the first person I have played with. But I must confess that I have had many fantasies about torturing you, especially when you get on my nerves! Like you know, I don’t really like you.” Susan grins at me.

I grin back and look down.

“Ok, so first off you have to understand something. This isn’t all about you. You may not like what happens here. I have thought about this. Last time was about you. This time it is going to be about me. You don’t get to say what happens here. If that frightens you we can go home now and pretend this never happened. Do you understand what I am saying?”

I shake my head yes. All I can remember is what happened last time. And even if this is something else, something more, something worse, all I can think about is the feel of my Sister‘s breasts and that intense pain as she burned me. Part of me is saying that this is all wrong, dangerous, stop. But I cannot. I am trapped by my memories. I would do anything to have even a part of what we had last time, again.

“I am scared but I don’t want to leave.”, I told her.

She looks me straight in the eyes with a very serious expression. “You should be, we are going to be exploring a whole bunch of things together. I have a lot of ideas and in most of them you will be in a lot of pain.”

She leans over and gently pushes me onto my back. She is on top of me again and we are eye to eye. She leans forward and gently kisses me on the lips. She says, “Get undressed Little Brother. Let’s get started.” She gets up and walks over to the backpack.

I begin taking my clothes off. While I am undressing I watch her. She starts to unpack the backpack. She takes out a sheet, a couple towels, and some ropes. She unfolds the sheet and lays it out on top of the hay in one of the old horse stalls. She starts untangling the ropes. She looks over her shoulder at me and says, “Come on, lay down on the sheet.”

I walk around her and into the stall. I lay down on the sheet. She has four ropes and is tying one end of each to a hook in the corner. They are all shiny and look new and the hay in this barn smells fresh. I am beginning to think that my Sister has been planning this for a while.

This wondered makes me more afraid. What is she gonna do to me? She finishes attaching the ropes and starts tying them to my arms and legs. She doesn’t say a word. She just grabs my arms and legs and moves them where she wants them. She is wrapping the ropes around them and finishes each with a knot.

“You are very good at this”, I say a little shakily. She smiles and says, “You aren’t the only one who looks at Porn on the computer. You can find all kinds of self help guides.”

When she is done, I am spread eagle. I cannot move.

My Sister looks down at me admiring her handy work. She slowly closes her eyes and gently cups her breasts in her hands. She slowly slides her hands down her body. With her eyes still closed she slowly looks up and takes a deep breath. “No one comes here Little Brother, no one can hear anything that happens in here. We are completely alone. You can scream and beg all you want but no one can save you. You can’t stop me.”

My Sister opens her eyes and looks me straight in the face. She starts unbuttoning her shirt. She removes it and her bra. Next come her pants and panties. She is still looking me straight in the eyes. I am transfixed, I don’t even look down at her naked body. I just stare into her eyes.

“Do you want to suck my nipples?” she asks.

In a soft voice I say, “Yes please Mistress.”

She smiles and crawls down on top of me. She straddles my leg and leans down. She rubs her breasts along my stomach and chest and finally into my face. Her skin is so soft. So smooth. I open my mouth and she slides her nipple into it. I feel her nipple with my tongue. I begin sucking on it. She pushed her breast harder into my face. I feel its softness covering my mouth, and nose. My eyes. Her breasts are so big. It covers my face. I am sucking on her breast and licking around her nipple with my tongue.

She pulled back and said, “That’s enough!”. She then pulls back her knee and slams it into my balls. I cry out but more in shock than pain. She hasn’t hit me that hard.

“You want the other tit?” she asks.

“Yes please Mistress”, I say.

She leaned over again and pushed her other breast into my face. She pushed it hard into my mouth and over my nose. I cannot breathe. I keep sucking and feeling her nipple with my tongue. My lungs begin to burn. I cannot breathe. I begin trying to turn my head to get a breath but she pushes harder. She won’t let me go. I am getting frantic for a breath. I am light headed. My ears are ringing. I am passing out. Suddenly the pressure lifts and I take a deep breath. And then suddenly WHAM. She kneed me again but this time hard. Then again. Harder. I cannot catch my breath. I cannot cry out. I try to turn my hips to block her. WHAM. She knees again and again, harder and harder. I cannot take it. I am begging her to stop.

Finally she does. I am breathing heavily. My balls hurt, I feel the pain all the way up into my guts. I feel like I am gonna puke. I look over and see her lying back. She has one hand on her breast and is squeezing it. Her other hand is between her legs. She is rubbing her Pussy.

I lay back and catch my breath. The pain in my balls and guts subsided. My stomach settles. I breathe deeply. Susan gets up and grabs her pack of cigarettes, she pulls one out and lights it up. She sits down next to me. “I told you you weren’t going to like this. But I don’t care. I thought it was fun.” She takes a deep drag on her cigarette, the tip is bright red. She slowly leans forward and grinds it out on my balls.

When she had started kneeing me in the balls, my dick had shriveled up. Now it was getting hard again.

Susan just watches and smiles, “You really do like this, don’t you?”. She relights the cigarette and takes a drag. It was only an inch or so shorter. She just sits there and stares at me, cigarette in hand, gorgeous breasts gleaming in the light. She takes a few more puffs then very slowly grinds it out in my balls again.

“So what’s next, Little brother? You want to suck my tits again? That didn’t end well for you last time. Or do you want to lick my Pussy?” She lights a new cigarette and stands up. She stands over my head, feet on either side. I am looking straight up at her Pussy. Her hair is very short and her lips are swollen and wet.

She slowly lowers herself onto my chest. I can feel her warm wet Pussy. She slowly slides closer to my head. Just as I begin to feel her soft moist Pussy touching my lips, I feel the burning of the cigarette on my balls. She is just holding it against my balls. The burn lasts. It doesn’t stop. “I saw you doing this the first time”, she says. “Don’t you like it?”