Here she is just beginning to work up a sweat. You can barely see
her nips peeping through.
She's sweating a little more here, and the shirt's becoming
transparent.
Now we're talking! The shirt's nearly transparent (as well as her
bra, if any).
This one's my favorite; the shirt's clinging to her body as I'd
like to. How about you?
I've seen other pix of her in this dress, with no sign of
her boob flopping out.