I love the two people in the back. The guy is like, "Hell Yeah!" and the conservative woman is looking at her heels in scorn with a scowl on her face! Most likely jealous because she could not pull off the look!
I'm glad I saw this thread. My wife and I are far from as thin as any of these gals (we're both SSBBWs), but because of our size this is about the only style of dress we can wear comfortably.