Some would say never.
I, on the other hand - after seeing J-Lo and Kim K doing it - have fallen in love with silk on silk.
And its so easy.
A lot of the time I picture an outfit in my head before I even try it on.
And this was one of those outfits I thought would look better in my head, than on.
Its actually really hard to find matching silk.
But I've shared some options I came across.
You could always go for a silk dress and duster coat.
What do you think of silk on silk?