The description of Femme Fatale doesn't really fit Triss,at least personality wise.Unless we're talking about TW1 Trissefer.
The greatest poets and dramaturges in the world would be agree with me
Femme Fatale doesn't mean she is a hoe or naked
Femme Fatale means that sort of beauty that is lethal to the hearts
Fatal doesn't mean looking, but a group of little things.
Her personality is fatal.
Her looks is fatal.
She haunts poets dreams.