Houston Ballet's "Dancing With the Stars" benefit at the home of John and Becca Cason Thrash inspired all manner of creative ballroom dressing but none was more perfectly attired for the party than the hostess herself. She chose a sassy yet stunning Dior haute couture that was as appropriate for the dance floor that covered the indoor pool as it was for greeting guests at the front door. Adding sparkle to the fashion fun were her Fred Leighton bracelet, the Van Cleef & Arpels earrings and the glittering Louboutin pumps. In a playful aside, Becca allowed that her thong panties lacked the stylish pedigree. They were from the Gap.