I am looking to identify a sci-fi short story about a male scientist married to a very beautiful, but vain and sexually extreme woman. She had sexual relationships with lots of men at the same time - with her husbands full knowledge, but not approval.
In the end he invents a beautiful dress, which he gives her as a present. When she puts it on she can't take it off and it starts shrinking.
In the morning there's just a very hard sphere left on the floor, with crushed bones and flesh. A horrible way to die, but a perfect revenge. She was later proclaimed missing, but the husband was never suspected of any crime.