My name is Kevin, I grew up in a small town in a very small house with my mother and 2 sisters.
My father passed away when I was 10 and mom never bothered to re-marry. I turned 18 last month, so I'm really the man of the house now.
Our house only has 2 bedrooms, so mom and my sister Jakkie share 1 bedroom, and my older sister Karen and I share the other bedroom. It can get pretty awkward at times sharing a room with your sister, but I learned early on about boundaries, and her and I respect each others privacy as much as possible.
Karen is well built, slim, nice size set of tits, very nice ass, but she is pretty shy about showing herself off, she makes me stay out of the room until she is in bed, and makes me turn off the light before I come into the room.
Sometimes it's like a never ending sex dream for me, I'm hard all the time and it's next to impossible to hide it from Karen, she must think I'm some sort of raging pervert, even though she never says anything of the sort. She does however glance at my crotch on occasion, and smile. I'm sure she knows she is the reason my cock is always at attention.
I discovered that masturbation was the only thing saving me from going crazy, damn I was beating my 7 inch cock off 3 or 4 times a day, but always in the privacy of the locked bathroom, and always with my sisters pussy on my mind.
Karen turned 20 a month ago, and she is moving out of the house in 2 weeks for a full year, meaning I will finally have my own room and the freedom to do as I please in it, I can't wait.
Tonight Karen was acting a little strange, she had changed for bed and for some reason left her lamp on and she also left her silky blue panties on the edge of my bed. I looked over at Karen as I put my hand down and picked up her panties, she smiled and closed her eyes. I couldn't get over how good they felt against my skin, so soft and cool and silky, and filled with the scent of her sweet pussy. It didn't take but 10 seconds after touching them and my cock was rock hard.
I couldn't get into bed like that so I headed off to the bathroom still holding them silk panties in my hands, I closed the door and had my cock out in seconds flat. I wrapped the panties around my hard cock and it almost blew my mind, what a fucking amazing feeling I had with them silk panties on my cock and the sweet smell of my sisters pussy in my nose.
They were so soft, so smooth, it only took 5 or 6 strokes before I was shooting a huge load of cum into them, I filled them panties up and damn near passed out from how great it felt. Holy shit what an amazing thing I've discovered, and what a huge mess I made of Karen's panties.
I quickly rinsed them out as good as I could and then used the blow dryer to blow them dry. After 10 minutes or so I returned back to the bedroom and Karen was sitting up in her bed wide awake. I just stood there in the doorway with her panties in my hand and a huge cock in my boxers.
A few seconds passed before she asked me if I had enjoyed myself, I knew it made no sense to play dumb so I just smiled and said "hell yeah." Karen smiled and said, "I figured you would like using my panties to cum in." Then she told me I could keep them so long as she could see me wearing them.
I was confused at first, until Karen told me her ex- boyfriend had really got off on wearing her panties and that she had noticed me get hard every time I looked at a pair of her panties, so she thought I would enjoy wearing them as well. Karen also mentioned the fact that it got her super horny seeing a guy with a big cock wearing her panties.
What a surprise, I just stood there with a smile on my face, and my huge throbbing cock in my shorts, wondering what the hell was going to happen next. Karen smiled back and told me to put my new panties on and let her see how they looked on me. I wasted no time as I yanked off my boxers and slid my new silky panties up over my rock hard cock, holy shit what a feeling, no wonder women enjoy wearing them so much.
Karen had me stand in front of her while she got a really good look at my big hard cock covered in my new silk panties. She told me to slowly turn all the way around so she could check out my ass as well. I did as she asked, she looked wide eyed with a huge grin and told me how sexy I looked in my panties, and how wet her pussy was getting just by seeing me in them.
Karen then surprised me again by pulling her blanket back, allowing me to see that she was naked except for a pair of soaking wet white satin panties with a lace front. My mouth opened to say something but all I could do was let out a soft moan as I stared at my sisters tits with them hard nipples pointing at me, and then looked down at the outline of her sweet smelling wet pussy in them white satin panties.
It was like a dream, my cock was so hard it hurt. Karen looked at me as she put her hand down her panties and started to rub her pussy and she said, "rub that big cock of yours and make yourself cum." I looked her right in the eyes and started to stroke my cock. It didn't take long before my balls tightened up and my cum worked its way up my cock.
Karen was moaning and sighing and breathing as fast as a freight train as she rubbed and fingered her pussy hard and fast. I could hear the sloshing sound her pussy made as she sawed her fingers in and out. The scent of her sweet pussy juice was making my mouth water as I pumped my throbbing cock for all it was worth.
After only a couple minutes Karen let out a loud gasp and moan as she started to cum, pushing me over the edge and making me cum hard and long in my silk panties soaking them with my hot sticky cum.
Karen stared at my crotch and licked her lips as she watched my cum soak into my panties, then she came again, only this time she was gushing cum out of her pussy and through her panties all over her bed.
A few minutes passed, Karen pulled off her wet panties and spread her legs wide, allowing me a nice long look at her hot wet pussy before saying "I had fun little brother," and then she pulled the cover over herself and closed her eyes. I was left standing there in my wet sticky panties, happy and very satisfied in the way the evening had gone. I was about to get into my bed when I spotted Karens white satin panties lying on the floor. It was as if she could read my mind because before I could even reach for them she said, "you can have them panties as well little brother."