She waits until the end of the day

Mrs Garcia's threat of sending her home if she misbehaved was enough to persuade Megan to stay in class all afternoon, rather than pick a fight with the security office staff. If she was sent home, it could be a day until she got the marker back.

Megan was so grateful to see a friendly face in her next class as she arrived late and plonked herself down in her seat at the back. Jenna was her best friend for as long as Megan could remember, and probably the only person in the universe likely to believe the absurd story she was going to have to tell.

Jenna, perplexed by the new development on Megan's chest was about to probe, but by the time her eyes had made from Megan's chest to her face, she realised that something was very wrong. She looked not only on the verge of tears, but looked like she'd been crying all day. Tactfully, she put her hand on Megan's arm and asked, sympathetically, "Are you okay? What's going on?"

Megan explained twice to an increasingly offended Jenna, who thought she was being mocked, until Megan picked up Jenna's hand and smushed it into her left breast to show her that it was real.

"Oh." Jenna furrowed her brow. "OH. Fuck."

By the end of the final lesson, there was no point trying to focus on learning. Even when she tried to raise her view to watch the teacher, her enormous chest was in her own view. Megan's formerly loose white sports top had been stretched to the point of transparency by the melon-sized breasts that hung from her skinny frame. Jenna kindly loaned her her sweater, but even that had difficult time closing, let alone disguising what was beneath it.

They weren't just jutting out forwards, either. They, or their silhouette, were visible from every angle, even directly behind her, and every single movement caused them to swing momentously. No posture could hide them from classmate or teacher by this point. At least the teacher had the decency to not openly point and stare.

Finally, the bell rang, and Megan was first to leave, sprinting to the door as best as she could with her new center of gravity.

"Where do you think you're going?"

Megan winced and spun around to see Mrs Garcia walking behind her.

"Detention! Now!"

"But--" Megan balled her fists in frustration.