All persons are 18 or older at the time of this fantasy.
To start the beginning of the story is true. Unfortunately the rest is just my fantasy.
A little of the usual lead in to give you a visual perspective. All true, no embellishment.
My family, well at least the feminine side of it, were never shy about their bodies, and I was certainly not about mine. Growing up my Mother was very open about the changes we were experiencing in our bodies, and other things. I could ask her anything.
We were living In Germany, I just finished my bath and was walking from the bathroom to my bedroom, I was completely naked, not bothering to cover up, it was just a few steps from my room.
I was stopped by my sisters voice saying, "Tom, you're naked." I stopped and turned towards her, and looked her in the eyes, which were on my cock, and said "So, you've seen me naked before."
I then turned and went into my room. I guess it's funny, but I remember she used to peek almost every time I took a bath after that. She even would come in the basement and interrupt when I had my girlfriend there with me.
Well fast forward to a time we were adults, in our early twenties. I had returned home on leave because my Mother had passed. She picked me up at the airport and we got home late. We sat on the couch and held each other trying to come to grips with our loss.
It got very late and she suggest we go to bed. Since I had been gone for awhile overseas with the military, my room had become a storage area. My sister had cleared an area and laid a mattress on the floor.
She asked if I thought I would be comfortable there or if I wanted to sleep in her room.
I told her that the mattress would be just fine, I was used to roughing it.
I began to undress and she just stood there and watched as I striped down to my underwear. I laid down on the bed and pulled the covers over myself.
My sister excused herself saying she wanted to get ready for bed and would be right back to say goodnight. I heard the shower start and then turn off. She came back a short time later, I watched as she walked into the room. She had changed and was only wearing an old tee shirt that was kinda short and a pair of crew cut panties.
She stood before me for a moment, as I looked up from my vantage point, I let my eyes travel up from her feet to her legs, when mt eyes reached her panties, I noticed that the were somewhat see through, I could see the dark outline of her pussy hair, I could even see how the hair was pushing on the fabric. (I forgot to tell you she is a brunette) I then looked up higher and could see the swell of her breast from underneath, and then the hint of dark aureoles, and hard nipples poking out.
I looked at her angelic face, framed by her long brown hair. She then came down on her knees and sat back on her feet and spread her legs out. I got quite a view of her panties pulled up tight against her pussy. I not sure how to describe how I felt right at that moment, I love my sister, but right then, the world seemed to stop, I remember I felt so alone and just wanted to take her in my arms and hold her.
I let out a sigh and told her "Maybe it's time you go to bed."
She looked at me strangely, but then bent over, allowing me a look down her tee shirt. Of course I saw her tits. She kissed me on the lips and said good night, then stood up and looked down at me for a moment more.
I said "I think you better go."
She turned out the light and closed the door.
I was really confused in my thoughts. But I finally started to relax, it had been a long flight back from Germany, and I really was tired. I started to doze off.
The sound of door opening brought me back to my scenes, she had come back in the room. The light was off and only the light from outside faintly illuminated the room. She sat on the side of the mattress next to me.
She looked at me and said "What is wrong, you sounded upset?"
