For every couple dressed like this, there's a million who color-code and call it a day.
Even then they usually end up arguing on prom night over the precise shade of color meant by "puce."
Heavenly in the front, divine in the back.
I mean hey, if it works for weddings...
"Tammy, dear, can you hike your dress up a bit more? I want to make sure we get a lot of leg in this picture. Also Tim, can you move your left hand a little lower...yeah...that's real nice."
The key to any successful prom is wearing an outfit so ridiculous and off-putting that your date's father isn't worried about any frisk(ies)y business. Good play, sir!