it's been a while since i went there, but what i remember - nice to sexy clothing. what my date did was wear one set of clothes for our dinner before hand and brought in another set of clothes to change into when we got there (they have lockers - bring your own lock).
one time, she wore a sexy tight fitting dress. another time, nice roomy blouse and roomy shorts. another time, nice blouse and nice jeans.
go to
https://coletteclubs.com/dallas.php and read up on their dress code, as well as other info.
btw, they mention one of my favorite adult sex escapade hotels - "Hilton Dallas Lincoln Centre for a more upscale hotel that's convenient to colette."
also, dont build up expectations in your head too much. just go with the flow and enjoy the moments. if you cum, you cum. if not, you can still have a deliteful time.