Sadie Frost's Eternal Fashion: 'I bought this dress for the Oscars - I didn't know it was see-through'

I've always been low maintenance and usually left things until the last minute. When Jude [Law, who Frost was married to at the time] was nominated for an Oscar in 2000, it was the same thing. I went to One of a Kind vintage shop in Notting Hill and found this amazing dress which really feels like a second skin. It's this beautiful cream color, with a beautiful jewel high bare back and a very low back. I think it would have cost a few hundred pounds, which I think isn't too bad for an Oscars dress.

I have friends who are into fashion and they laugh at me because I've always been a bit anti-fashion. I grew up working in Camden Lock Market and my mum ran an old clothes shop. It was always about throwing clothes; sometimes they looked good and sometimes not.

Oscar night was one of those times when I felt happy and beautiful. It was an exciting event, something I thought I would never go back to, and it was a special moment. It's not often you feel so confident in yourself, inside and out.

I've worn the dress several times at the over the years at parties or when friends came over for dinner and I wanted to dress up. It's incredibly sheer, but I didn't realize how sheer it was until I saw pictures showing my nipples. In those days, you didn't do stuff like that and I certainly didn't do it for attention – it was just a pretty dress. Now I wear it with a layer underneath. There is something very greedy, but I also like to wear it on a striped T-shirt, it really opposes two styles. Or with rubber boots, for a walk.

When I moved to the countryside, I brought all the things that really mattered to me and I I had to really think about what mattered. I want to give this dress to my daughter, Iris; I think she will be beautiful in it. There are some stains and illuminated...