The second she walks out the door

Mackenzie reached the ground floor and began speedwalking as she stepped out of the lobby. It was warm for a fall day, which Mackenzie was thankful for as she hadn't been able to afford a light jacket for the time being. Darting around slow moving people, Mackenzie brushed against a sturdy bush as she tried to hustle to her first exam.

But Mackenzie's choice of buying cheap shirts to restock her wardrobe was about to bite her in the ass. A stray thread at the bottom of the garment got snagged within the prickly branches of the bush. As the redhead began making her way across campus, she was unaware that her shirt was beginning to slowly unravel.

As she made the trek towards the academic buildings, Mackenzie got her usual amount of stares and catcalls. They had become almost commonplace for her ever since her humiliating involuntary streaking ordeal. Mackenzie had gotten better at ignoring them, but it still embarrassed her to think about how many people had seen the countless videos of her running around undressed or naked.

It wasn't until Mackenzie arrived at her class's building that she glanced down. She'd been feeling a bit of a draft around her stomach, and was shocked to see her shirt had somehow shrunken by about eight inches!

"What the hell?!" Mackenzie said. After feeling around the shirt, she noticed the lone thread trailing away behind her. The redhead groaned as she snapped the thread. "Great, this is the LAST thing I need today!" Her v-neck t-shirt was now looking much more like a crop top. But with her test starting in just a few minutes, Mackenzie couldn't do much but hustle inside.

She found an empty seat and sat down, mentally preparing for the calculus midterm she was about to take. So, Mackenzie didn't even notice when a boy named Zack settled into the desk behind hers. But Zack sure noticed her.

Whoa! This is that streaker chick! he thought as he recalled the videos he had seen of Mackenzie, She is ROCKING the midriff look today.

Zack hadn't studied at all for this midterm, and wasn't really worried about passing it. The professor had explained early on that getting a good grade on the final would ensure a passing grade for the course, so Zack wasn't sweating it yet. So, as the scantrons and test packets were passed out to the students, Zack's mind was fully focused on the beautiful redhead seated in front of him.

That's when he noticed the stray thread dangling from the bottom of Mackenzie's crop top. Would pulling on that unravel her shirt? Or make it fall apart completely?! It was close enough that Zack could easily reach out and grab it. And he was sorely tempted...

Wait... he thought to himself, This is the chick who gets off on running around naked. Could it be that she WANTS people to strip her? Plausible deniability or whatever?

As the test began, Mackenzie was fully focused on the questions in front of her. While Zack was debating his next course of action.