I had been working and then heard a small commotion below me.  Turning to look, I watched as girls began arriving inside the dorm room, setting their books aside and talking lowly among themselves.  I could not hear what they were saying but I really began taking notice as a few of them began undressing.  One girl, a bold one, had sat up on a bookcase with her bottoms completely off.  She suddenly began moving her hands all over herself,  undoing her shirt and then her bra and taking it off as well.  I was astonished, then, to see her hands moving to her pussy, both of them.  She writhed in front of the other girls, who I now noticed were following her lead, removing things.  One girl laid down directly under me, looking up as her hand went to her own crotch.  I flinched as I realized I could probably be seen.  I did not know what to do, caught, as I was, in such a flagrantly exposed watching and peeping condition.  My face turned red.  However, if she had seen me, she did not acknowledge it.  She began rubbing her pussy with more vigor, actually, running a hand also over her very attractive breasts, squeezing them harder and harder.  She began pinching and manipulating her nipples.

     There was now noise emanating from below me.  The incredibly sexy sound of women masturbating; and not just one either.  The blood pounded i my ears and brain as I beheld this spectacle below me.  A coed masturbation club, doing their thing right there not 8 feet away. 

     Other girls were masturbating alone.  One, a big busted blond, had an object, some sort of dildo in her mouth. I watched, utterly fascinated, as she sucked it, her hand moving it in and out.  Her lips pursed as she entered herself, her hand forcing it further down until it nearly disappeared.  I heard her cough.  She had gone too far and it had made her gag.  Yet, incredibly, instead of being repulsed by it, i could see obvious signs of arousal from her.  She re grasped it and forced it even farther down her mouth and throat this time.  In fact, it very nearly disappeared.  This girl was swallowing a hard dildo object!  She then pulled it out, holding it in front of herself, then licking it all up and down.  She must have licked this dildo for ten minutes as I watched, fascinated.  Then she gripped it in her right hand, pointing down and inserted it into her hot young pussy.  Her hips rose to meet the dildo and she began moving it in and out of herself, more and more rapidly.  The passion, the moans, the ecstatic sounds of girls meeting in a coed masturbation club and having themselves off led to a distinct need to do the same for myself.  I pulled my incredibly hard cock out and began masturbating in the heat duct.  As the moans and groans, the incredibly erotic sounds of young women masturbating and approaching orgasm continued below me, i also neared my own orgasm.  Rapidly jerking my cock, I came, cum spurting into the air and a small droplet falling between the cracks of the duct right onto the breast of the girl below me.  As it struck her, she came, moaning loudly, as if my cum were the last remaining impediment to her pleasurable denouement.  Panting, i listened as they all seemed to cum minutes apart.  it was an electric sound, making my hair nearly stand on end.  This was perhaps the most highly-charged erotic atmosphere I had ever encountered.

    I gathered some things, quietly above them.  the coed masturbation club had "closed their meeting" and girls were getting redressed.  Some giggling and laughing occurred as they dressed and one of the girls, as I watched, went over to the one who had been under me and put a hand on her breast.  The girl extended a finger and scooped up my small drop of cum.  She then looked at it closely, smelled it, then placed the finger in her mouth, sucking it off.  "Yum," she said, "real good!"