This is part 2. It won’t make all that much sense without having read [part 1](https://old.reddit.com/r/eroticliterature/comments/ibm4bn/doomed_by_the_bell_ffmbdsmthroatfuckingorgasm/) first. So I’m gonna go ahead and recommend that.
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There’s a lot of different reasons for a human body to shake. One’s thighs might shake from the strain of trying to keep one’s lap off the uncaringly droning vibrator one is kneeling over. Limbs may quiver from the exertion of trying so very hard not to cum, while every single nerve ending begs for it in a flurry of fireworks. One might shake from the cool gust of wind that drags across one’s naked wet skin, beaded with sweat and soiled from baser pleasures. One might shake from the intake of adrenaline that comes with hours of a hard angry cock taking liberty with one’s mouth and throat, allowing one to breathe merely by accident rather than design. Finally, it’s entirely possible to be enough of a cum slut to shake from the sheer pleasure of feeling a cock leak a steady dribble of precum for minutes, inches away from bursting into a million pieces.