It was a plain white bras, Zoe took it looking around her to see if the other student have seen the underwear and quickly hid it away.
As soon that the class started she quickly raised her hands and ask to go to the bathroom, blaming "girl problem" and quickly direct her self to a bathroom that she know was rarely used.
When Zoe finaly arrived she drop her stuff on the side and took out the bras again, the coups were massive, looking at it she could say aroud a DD minimum, then a tought when trough her head, "It must be Sarah's bras!" she tought exited, " I can make her life à pain with this for a day, it will be funny go see Search for it" she said to herself.
As she was about to hide it, a funny idear past trough her head, " I wonder what it is like to wear this... I mean, what is going in there are massives... Might as well try it... Yeah just for the quick if it", as soon as she finished her wondering, Zoe removed her top and her fishnet shirt, looked at her own black bras and removed it, she then stop, looked at her B cup breast and back at the white bras and then put it on.
Just as expected, the bras not fitting her forms but it was comftorbable oddly enough, Zoe did not felt like the bras was hanging lose upon her own chest, but it was like a baggy hoody but at the same time it hood her breast un place.
She looked herself in the mirror, " Not bad" she tought, "but it wouldn't fit with my style, sad it's very comfortobable, welp time to put on my... uh? Where is it?" Her bras that she had put on top of her clothes was not there anymore, confuse Zoe looked on the floor, not there, in the stals, not there, she looked aller around the bathroom, not there... " If this is a prank, I am going to murder the one who did it" she tought, " I can't go braless, this would be stupid" she looked down at the white bras, "Well I am not happy to have you on hand, I just need to not cross Sarah and return it tomorrow I guess." Zoe put back on her clothes and exited the bathroom going back to class
