One day during class, for some reason, I started to get very horny. I really don't know why, because the class was boring as always, but I had an itch that would not go away. I tried to sit through it, but I couldn't. I needed to cum.
Walking out of the lecture room, I went to the bathroom that wasn't used as much as others and locked myself in the stall. As soon as I dropped my pants, the cool air made my pussy tingle and my nipples get hard. I started to rub myself like always, but then thought to do something different. Standing there, I stripped off all my clothes until I was buck naked except for my flip flops. I half-squatted down to get better access, and quickly started fingering my sopping wet vagina. Almost uncontrollably, I started moaning and grunting as I fucked myself in the stall.
Before I came, I wanted to take it a step further. Taking a deep breath, I went out of the stall and locked the bathroom door. When I knew it couldn't be opened. I stood in front of the big mirror by the sinks and started masturbating again. When I was getting close to cumming, I kicked off my flip flops and climbed onto the counter, kneeling right in front of the mirror. As fast as I could, I started thrusting my finger in and out making all kinds of squishing noises. When I came, I couldn't believe how sexy it looked in the mirror. My breasts were heaving and my forehead was covered in sweat. I kept going until I felt a second wave that made my toes twitch and my hair fly around.
When I felt satisfied, I couldn't believe what I just did, doing it completely naked in a public bathroom. I got dressed, fixed my hair and went back to the room. Since everyone was busy taking notes, I'm not sure if anyone noticed how long I was gone. But even if they did, all I cared about was that soothing feeling in my freshly fingered vagina.