Ilona Staller, known as Cicciolina, wore this revealing dress on the red carpet at the 1988 Cannes Film Festival! She was a member of the Italian Parliament at this point in her career.
Sample:

The people in our Congress never dress like this.
Well, not in public.
There’s no telling what Lindsey Graham looks like at home.

“Our Congress people never dress like this.”
I’m sure for the GOP it involves leather and kneepads.
Or a nose guard
Has anybody done a biopic of her? Seems like a guaranteed blast
Phrasing!
I would pay good money to see that in the hands of the right filmmaker. Anya Taylor-Joy would be perfect for that role.
Cicciolina (Ilona Staller) was in a Italian movie called “SKIN DEEP” aka Senza Buccia” 1979.
Very rare film, NOT a porn film, more of a sex comedy drama film!
Ilona never wears clothes in the film, and never looked better!
Very watchable film!