A Submissive Sibling
Copyright© 2025 by H. Malcom Walker
Chapter 3
Incest Sex Story: Chapter 3 - Mark and his sister Carrie have always gotten along well, even if she likes to tease him a little too much. A surprising DNA result leads to lines being crossed. Discover the taboo journey of two siblings caught in a web of desire and consequences.
Caution: This Incest Sex Story contains strong sexual content, including Ma/Fa Consensual Heterosexual Incest Brother Sister FemaleDom Humiliation Masturbation Oral Sex
I had a very restless night of sleep, tossing and turning and waking up several times from dreams of Carrie stroking my cock. Each time I woke up I had a raging hard-on, which I normally would have stroked until I gave myself some relief. I didn’t though, even though Carrie probably would have never known. I think some part of me knew it would be better to wait. Better to see what Carrie chose to do with my erections.
It was Saturday morning so I had intended to sleep late, but I was startled as I rolled over to face the edge of the bed and bumped into someone sitting there. I propped myself up to see that it was my sister, and she had a wicked smile on her face.
“Good morning,” she said.
“Uh ... good morning,” I said cautiously as I pushed myself up to lean back against the headboard.
“Did you sleep well, big brother?” she asked as she reached out to stroke my thigh over the covers.
“Well, to be honest, not really,” I said. “I kept dreaming about you then waking up.”
“You didn’t play with my cock without permission, did you?” she asked with a concerned look on her face.
“No,” I replied curtly. I was kind of disturbed hearing that kind of language from my sister, but kind of turned on as well. My morning wood was getting even bigger under the covers. Carrie looked like she was only wearing panties and a crop top, so that wasn’t helping either.
With another smirk, she reached out and grabbed the covers over my legs and began to slowly pull them down towards my feet. “I better check out the merchandise, just to be sure it’s okay,” she said.
“Carrie!” I hissed, pushing down on the fabric to either side of my legs with my hands to stop her. “Mom or Dad could come in.”
“Mom and Dad, as you like to call them, left early this morning and won’t be back home until tomorrow night. They left a note on the kitchen table. Now, move your hands, Mark.”
I stared at her for a moment, then lifted my hands. She laughed and started pulling the covers down again, which soon exposed my boxers underneath. There was a very obvious tent sticking up, and covered it with my hands as I felt my face begin to blush.
“Nyuh, uh,” said Carrie. “Hands off my cock, Mark. I already told you not to touch it without my permission.”
I sighed by blowing air out through my lips, and I’m sure my blush got even deeper, but I moved my hands off my erection. I put them down on the sides of my legs again and stared straight ahead, wondering how my sister would try to continue my embarrassment.
“Hmmm,” she said, putting her finger up to her chin and exaggerating looking at my crotch. “It’s kind of hard to see with that underwear on. Take those off.”
“What? Are you serious?” I asked.
“Very,” was all she said and tilted her head as she stared at me, challenging me to refuse her.
I sighed again and reached down to slide my boxers off my hips and down my legs. As I pulled my feet up to take them off completely, Carrie grabbed them and threw them off somewhere to the side. Since that was all I had on while I slept, I was now sitting on the bed completely naked, while my sister craned her head around to look at my very erect cock.
“You know what?” she asked with another devious smile. “I don’t like it being covered up like that when I come in here, so no more underwear while you’re sleeping. Got that big brother?”
“Yes,” I answered sullenly.
“Where are your manners, Mark? Answer me properly.”
“Yes, ma’am,” I replied. My cock jumped a little as I said it, which Carrie didn’t fail to notice.
“See, everyone is happier when you do as you’re told.” As she spoke she put her hand out and brushed my knee with her palm, making me jump a little.
“Shhh. It’s okay, big brother,” she whispered. What a brat. She moved her hand up my thigh, causing my already straining prick to somehow get even harder, and my scrotum clenched up tighter as well. The anticipation was killing me, and I’m not sure I had ever had so much blood rush into the tip as there was right now. It looked like a giant purple mushroom, and the slit was open just a bit with drop of liquid oozing out.
Carrie scooted up a little then leaned over until she was resting against my thigh. Her left hand traveled up my leg, causing me to shiver even more as she lightly brushed the hair on my thighs with her palm. She brushed that hand across my lower abs then down until she wrapped her fingers around the base of my cock, squeezing it lightly. Oh my God ... that felt so damn good.
At the same time, with her right hand, she brushed up my other thigh until she reached out with her pointer finger. Holding my throbbing member around the base with her left hand to steady it, she touched the very tip with the finger on her right, gathering up the small drop of pre-cum.
She held the finger closer to her face to study it for a moment, still keeping her grip on me with her left hand. Staring me directly in the eyes, she stuck out her tongue and very slowly licked the tip of her finger before closing her lips around it, nursing on the finger that just a moment before had my pre-cum on it. Her eyes never left mine, and I flexed my crotch upwards as a wave of pleasure rushed through me.
“Oh fuck, Carrie,” I gasped. My fists gripped the sheet below me, and I felt like I might blow my load right then and there. My mind filled with thoughts of her stroking me again, making me cum on her leg again like last night.
Instead, she kept the grip on the base of my shaft and said, “Lay flat again.” I scooched my body down the bed than lay my head flat on my pillow. Then she stood up and put a knee up on the bed, proceeding to straddle my thighs. I could see now she had on white panties with a little red bow on the waist line. The white material gripped her mound, and it was all right there, right there just past my straining prick.
She let go of my cock and reached up with crossed hands to grab the crop top and pull it up and over her head. Then she reached down to grip the base of my boner again, while she grabbed my ballsack with the other.
“Fuck! Fuck, Carrie!” I cried out as she squeezed my balls inside their sack. They were sensitive, and I was not used to them being handled like that, even though she wasn’t squeezing as hard as she could. I looked up to see her smirk, then she let go of my package and slid further up until she was sitting on my stomach.
“I want to see if you know how to behave, big brother,” she said as she looked down at my face. “If you do as you’re told, then I will reward you. If you don’t behave then I’m going to cut you off for a week. Do you understand?”
I nodded and said, “Yes, ma’am.”
“So be very still and don’t move a muscle. Don’t say anything. Don’t do anything. Be a good boy for me, Mark. Nod once if you understand.”
I nodded, then swallowed in anticipation, having no idea what was about to happen.
“Arms at your side with your palms flat. Remember, no talking or moving.”
I put my arms down my side and my palms flat on the bed, right next to my hips. Carrie smiled then slid further up, until her knees were on either side of my head and her panties were hovering right over my face. I saw her put her hands out and grip the backboard of my bed, using it to let her hover just where she wanted.