I don't have a photo I can share, but KK's "goto" one-thing only outfit has zero subtlety - it's a black, A-line sleeveless/shoulder-less mini-dress. It zips up the front, from the hem-line to the neck-line, and has a sort of in-built corset top. KK can wear it without a bra, even though she's busty, the corset part gives her plenty of support.
The outfit also has a pair of velvet/satin gloves that go with it - they come up KK's arms just past the elbow. In this dress, along with a garter, stockings, and fuck-me pumps, there's absolutely no doubt what KK has in mind, or how the night's gonna end.