Before she can even move, something pushes her further in from behind?!

(chapter originally by HiMyNameIsBlank at writing.com)

As Mackenzie considered her options, her thoughts were entirely derailed by the feeling of two large hands pushing on her rear end with unbelievable ****. She yelped, her anxiety replaced by utter shock as she was **** slowly into the vent by this mysterious assailant.

At first, she didn’t actually move much; rather, the **** of the push simply caused her rear to spread out as the stranger’s hands sank into her soft ass. But, after a moment, the pressure proved to be too great, and she slowly but surely oozed into the vent entirely.

As Mackenzie was sent into the pitch darkness of the vent, all she had to ground herself were a sequence of sounds: the loud rrrrrip of her dress being completely torn to shreds down the back, followed by a deep, spine-chilling laugh, finally punctuated by the unmistakeable CLANG of a metal hatch slamming shut behind her. Then, silence. Mackenzie was now nude and completely isolated in the vent.

The only good news was the fact that, with her dress out of the equation, she was no longer as tightly-packed into the vent as she had been, giving her a certain degree of mobility—albeit, a very small one. Moving even an inch required quite a bit of effort, and the walls of the vent still pressed tightly on her shapely hips and ass, as well as sending a chill through her now-exposed nipples.

The way she saw it, she had two equally terrible options available to her: she could either press deeper into this seemingly very long ventilation shaft, or attempt to kick open the hatch behind her to back out. The former option seemed tiring and potentially dangerous, though the latter seemed impractical at best given how restricted her leg movement was. Additionally, if her mystery assailant was still in the room, she wasn’t sure she WANTED to go back. It was bad enough that they had seen her exposed ass like that, but for them to see her completely naked? The thought was too much to bear. Plus, she didn’t know who they were. What if they took advantage of her? But still, even then, is pushing forwards even really a better option...?

These thoughts swimming in her mind, Mackenzie decided to...