Tyra runs through first

"And I’m guessin’ ya want me to go first?"

-"in all fairness you’re a lot shorter, so maybe a lot of shots will miss you."

"...Fine, ya damned chicken, I’ll go first."

Tyra pushes Diana back a little to make some space, leans back on one heel, and then just takes off like a speeding bullet. With every step she takes the floor gives way an inch or so, and in response dozens of darts are fired from various holes.

Strangely, none of these projectiles flies to pierce Tyra’s skin, as if they alter their trajectories with intent, to narrowly graze her instead of hitting her. The darts avoid any area of exposed skin, and instead they whizz past her and neatly slice through the fabric of her bra instead. Dozens of projectiles cut and tear strips of cloth from Tyra’s brassiere, and she leaves a trail of strips of torn fabric as she bounds through the hallway. Tyra quickly becomes aware something is amiss as her copious bosom starts bounding, increasingly unrestrained by the bra rapidly being chipped away at by the enchanted darts, until it finally gives way under the considerable pressure and the cups simply rupture and fall away. Finally she reaches a section of solid floor at the end of the tunnel, looking down to see her impressive set of knockers now fully revealed. Realizing she’s been reduced to walking around in just her panties, Tyra yells loudly, firmly clasping her arms over her torso. It’s a shout born out of a mixture of frustration and humiliation, and similarly the blush on her cheeks is both anger and embarrassment.

Diana quickly follows, but none of the pressure plates trigger again, and she makes her way across without incident, and willing to engage in some Schadenfreude.

"Damn, those darts sure knew what to hit!"

”- I hate this place Dee, I hate it!” Tyra snaps back.

”In fairness they were aiming for a big target” Diana snickers

-“Oh haha laugh it up, just you wait it'll be yer turn soon enough!”