[She's not familiar with either term enough to even gauge her comfort levels, so Marcille takes a moment to use context clues to figure out where Aoko is going with this. It's a pretty quick deduction.]

I guess this part is more likely to be hidden by the water. [She looks down in the direction of her own chest. Wearing the blue swimsuit, she'd look practically naked if she submerged herself in the water.

Still lit up, Marcille twists to the side and lifts her arms over her head, putting the top through its paces.]

And I guess I feel - pretty strapped in, if you ask me. But is this a little unorthodox?