Most of the car ride was spent looking at our phones with occasional smiling glances and bumping against each other in the back seat. My younger sister left her hand on the middle seat and I took it for a few minutes, rubbing my thumb over her soft skin. We loved the small amount of public contact we could do that just made everything more electric.
In the car, Lily would spread her legs, or I would put one leg bent on the middle seat. Turning toward each other, admiring each other's bodies. She even rubbed her clit and put her wet fingers in my hand. It felt so wildly sexually forbidden. I wanted to pull her to me and go down on her right there.
Instead, I just licked what I could from my fingers and stared at her while she again reached down her shorts and arched back in pleasure. The radio was on but my slutty sister wasn't quiet.
I thought quickly and started singing along to the song. Getting into it, I asked my Mom to turn up the radio while she drove my sister and I home from a weekend at my aunt's. My sister thanked me with a pleading look as she bit her bottom lip hard and then her eyes rolled back, her body got rigid, her fingers moved quickly to the upbeat music, her legs spread wider, her small tits rose and fell quickly as she tried to breathe through the start of a building orgasm deep in her cunt.
She pulled her fingers out, I watched her fingers as they dripped. I wanted to suck on them with the hunger of a needy subby slut but she quickly drove her hand back inside her little, very wet, shorts and brought herself all the way to orgasm as she squirmed and thrust her hips directly behind our oblivious mom.
The dichotomy I was witnessing was surreal, my mother was focused and intent on the road ahead, knuckles tense and dressed modestly. Her figure covered but I could still see the side of her boob, still pretty firm and large. But she was not very sexually expressive or open minded.
Behind her, not 2 feet away. Her youngest daughter spread and enthralled in self pleasure. Fingering intensely, thrusting 2 of her fingers at least in her tight cunt. Dressed in short shorts, a thong, and a tank top. No bra as her perky tits pressed forward and her hard nipples poked against the black cotton, easily visible for me.
I sat next to her and it was getting very hot in the back seat. I wanted to indulge in my own self pleasure, rub my clit and then suck on my sister's soaked fingers. Mom would occasionally flit her eyes to the rear view mirror but couldn't see either of us fully as we leaned against the doors and spread over the back seat. If traffic was light and we were chatting she might look back at me though.
Finally after several minutes of wild fingering and a few releases I watched my sexy sister finally open her eyes, unclench her jaw, breathe fully and pull her absolutely drenched fingers from her wet cunt. White as snow from fingertips to palm. I didn't care where we were, that our uptight mother was inches from my sister's wet fingers. That I was going to possibly gag on my sister's fingers directly behind my mother. I didn't care.
I grabbed her wrist and brought her arm to above her thigh, quickly leaned over and forced her fingers to the back of my mouth. Sucking on them and swirling my tongue around them and between her fingers. Sucking and bobbing my head, I loved when we could get this wild and passionate. It turned me on as well.
Her other hand ran through my long hair and over my ear. Long and slow strokes as I sucked the taste of delicious cunt from her fingers. My sister's shorts and thong were already pushed away from her cunt so I reached with my free hand in the right leg hole and drove two fingers deeply in her wet, warmth.
Immediately curling my fingers and releasing all the frustrations of the past hour into the loving act of grinding my fingers against her g spot and thrusting my fingers deeply inside my petite younger sister's tight, wet cunt. She flooded around my fingers after about a minute. I tapped my fingers deeper against her g spot and a final small stream erupted and coated my palm.
She pulled her fingers from my mouth. Grabbed my wrist and brought my fingers to her lips as she leaned down close to the back of the driver's seat. I felt limp but needed my horny sister to taste herself on my fingers. Knowing her careful licking and sucking was a sign of praise and she kissed my hand quietly. After she dropped my wrist I laid my head and my hand on her thigh.
Our mother thought she was a complete princess and I had always been the wild child. However, the reality was that my sister was an absolute kinky domme that routinely owned her submissive slutty older sister, me. She loved holding the power and was a bit of a sadistic domme, perfectly matching my pain and praise kinks. My younger sister looked up to me most of our lives but when we opened up to each other sexually, the dynamic shifted..
She continued to calmly stroke my hair. Her legs spread and the sweet scent of her cunt filled my brain. I closed my eyes. I put my leg up on the seat. Bent my leg, while the other was still on the floor. Nicely spread as my sister looked down at my stunning body. My firm, large breasts gently rising and falling under my own tank top. My cleavage looked great even laying down across the back seat.
I thought about how many times she was going to cum on my face tonight. Getting so hot I gently slipped my hand down my own shorts and rubbed my clit slowly. Gently rubbing between the swollen lips and stroking my needy large clit like I was scrolling my computer mouse through endless invoices at work. Feeling the familiar curves of my clit as the car sped through the bumps and curves we rode along, content and in a sensual haze.
We slowed down as we entered our town. I sat up and looked at my sister, a bit disheveled. We mirrored each other to fix our hair and make sure our tank tops covered our boobs and to make sure we didn't look like we both were dripping with self pleasure...
When we got home, mom was getting ready to go to sleep, busy walking around the house in a fuss, cleaning up the living room and kitchen. Grandpa was still awake in the living room, sipping some tea and reading a small book. He smiled, looking up from his book and over to me. Shaking his head as my mom bustled past him picking up around the couch.