It was a nice Sunday afternoon. I was doing my laundry as the rest of the family watched football. I was walking through the family room, about to pass my mom when I dropped a sock and bent to pick it up. "Mom says Uh nice color", and I feel a tug a my waist. "Oh let me see those underwear" She has a soft laughter tone in her voice. I straighten QUICKLY, look at all the smiling faces around the room, BOLT to my bedroom, closing the door behind me.
Imagine the embarrassment of my mom seeing my sisters panties sticking up over the top of my jeans. Worse yet, she shared that with the whole family. At that point I had been wearing both my sister's panties for a few years. It started with my Mom's that I found hanging in the bathroom one day after watching her strip to nothing but her panties as she did her daily routine of changing to her night clothes while talking to us when she came home from work.
Once behind the security of my bedroom door I sat down on my bed HOPING she or no one else had followed me. After a few minutes and no movement of my door I began to get excited thinking bout what just happened. I had been horny all day. I reached under my pillow wear I always kept a few pair of mom's panties ready and pulled out a pair of her briefs. I pulled my zipper down to release my dick, wrapped mom's panties around my hard on and began to stroke wishing her panties were her pussy. I was getting the first signs of release when suddenly my door opened with no warning. There I sit wearing my sister's panties with my mom's panties wrapped around my dick and my hand almost a blur.
Mom closed the door behind her then slowly began to turn towards me. By the time she completed her turn she had pulled her dress up high enough to reveal a pair of panties I had previous found in her drawer and recently shot a load on. She looked at me then pointed to a stain right near the crotch of the panties she was wearing. "So this explains where this came from!"
