Ok... So... I discovered this site a couple of weeks ago and it's actually really nice to have an outlet for some of these thoughts, a place that feels like it gives me something in common with other people, if only in secret.
I'm sure anybody reading this has heard of how some girls can get off at any time by crossing their legs, rocking back and forth, jiggling their leg, right?
Well, I'm going to tell you about a not so subtle girl... Ah well, in her defence she was sitting right beside me. Anyway, I first noticed something weird when this girl really squeezed her legs together hard. Me, being perverted, was like 'Whoa, well then.' There wasn't really enough room with the low desks and tight rows for leg crossing. But at this point, I still wasn't completely sure what was going on. But, she started moving and jiggling her legs more quickly, another girl who must've been a friend (or an enemy for all I know) said something to the effect of 'Wait is she...?,' or 'OMG I can't believe...' I finally caught on, and I was getting a real hard on. The girl then puts her left hand and puts it on her clit over her tight pants, and continues to jiggle her leg up and down, the way you might if you were just antsy to leave, very quickly, while squeezing her legs. I still couldn't believe what was going on. I'm pretty sure I was one of only 3 or 4 people that really caught on. This continued for about 40 minutes. At one point, she was clearly cumming; her foot jerked up two or three times and she let out a quiet sigh that just barely hid a moan.
I gotta say, I commend the girl for her guts, even if she was sitting in the back of the class. She even kept going when she was almost called out by her classmate in the beginning. That and about five people where within a four foot radius of her! Suffice it to say, I had business to take care of the moment I found a quiet bathroom!