A few years ago when I was a senior at High School, my family went to Florida on vacation. We stayed in a nice hotel with my sister and I in a room and my parents in an attached room. The room had only one king size bed, so my sister and I had to share it.

We were having fun, going to Disney World and everything. One night something happened that I will never forget. It was late and I was lying in bed with TV. I was half asleep, and my sister, who at the time was fifteen years old, was watching something about HBO. I could never fall asleep too easily and I woke up completely when I felt a little emotional on the bed.

I opened my eyes and looked at Kim. He was lying on his back, knees in the air under the blankets. His eyes were closed, so he didn’t realize I was awake. In light of the TV, I could see the covers moving a little around the waist, and that the knees opened and closed while squirming under the blankets.

In less than a minute I figured out what he was doing, and I was going to say something when I realized I shouldn’t embarrass her, even though I was probably more embarrassed myself. So I lied there looking out the corner of my eye while masturbating. Now I had played with myself a lot of times, and usually it only took me about 5 minutes to come, but Kim was going very slowly. I couldn’t see her touching between her legs, but I could see her squeeze her breasts, over her shirt, and get her hard nipples out while she kept squeezing.

After what seemed to look at her, I realized I was warming up a lot. Seeing her swinging gently on the bed, knowing she was rubbing me was approaching me. When his breathing increased and groaned, I couldn’t bear it anymore. I put my hand on my pussy under the covers and I started rubbing myself.

I didn’t want Kim to notice, so I rubbed slowly while I was watching her. She started really entering, more than I ever did. I thought I’d die when she threw out the blankets to show me exactly what she was doing. She was holding panties on the side with one had while the other was rubbing her pussy’s lips. For some reason seeing this really turned on me and my pussy got so wet while I kept rubbing it on my panties. Kim had now pulled her t-shirt on her breasts, and I started tightening my own as I looked at my sister. I’m getting more and more, and when I put my hand under my panties, I practically screamed. Now I was moving a little by myself and I thought I’d die when Kim laughed out loud and called me my name.

He told me he knew I was doing it too. I started playing stupid, but in a second he lit the light and took off the covers. My hand was still under my panties and the other was under my shirt on my chest. I was mortified, but he kept telling me his good and continuing to do it. He asked me if he was wet and I said yes. I told Kim to leave me alone, but I felt my pussy wet and wet my hand while he teased me. He kept digging me, telling me to rub my wet pussy, a word I’ve never heard of in my life. Soon I was rubbing him back under my panties because he looked, sitting right in front of me. I was really embarrassed but too hot to stop. I was rubbing when I saw her hand coming back between her legs and she kept rubbing her pussy too.

After a few minutes he pulled up his shirt. I could see her breasts perfectly in the light, and she told me to raise her shirt. I respected, and we looked at the hard nipples and hands in the legs. I started to moan and felt like I was for cum - when Kim told me to take off my panties so he could see. A little less embarrassed, I brought them to expose my pussy to her. He observed that mine was much more hairy as he pulled down his panties as well. I looked down her light brown pussy and wet lips while she started rubbing again, and then put her finger inside. Although I usually only rubbed my clitoris told me to do the same, so I widened my legs and pushed me the middle finger between my lips. I kept my palm back, rubbing my clitoris while moving my finger in and out. Kim looked while I started swinging on the bed, I never feel better in my life. He asked me if I was about to cum and I said yes. She got up on her knees and rubbed my breasts. I was shocked, and her pussy was right next to my face so I tried to get away a little bit. Soon he pinched my nipples and started cumming. She laughed and yelled at me telling me about cum, and I did it, the hardest I ever did in my life. I screamed and my pussy pulled out the juice on the sheet. I still feel great I looked like she finished herself, rubbing her clitoris with her right hand because her left finger her pussy. Of course I had really mixed feelings the next day, but he decided it was harmless. We played that holiday again and sometimes since then! Lately, I was wondering if my roommate was interested.