Title: Your Worst-Kept Secret And Your Brightest Idea
Rating: probably about PG, maybe PG-13, for lots of champagne and mention of phone sex.
Prompt: Inspired both by Sue Bird/Diana Taurasi, secret lovers and I'll be your best-kept secret and your biggest mistake.
Disclaimer: Not mine. Not real. No harm meant. Please don't sue.

( And if Diana's smiling- well, does Diana ever not smile? )