I had beeeen looking for a plum coloured lipstick, I finally found the perfect one. The Rimmel Lasting Finish Lipstick in Cutting Edge (120) glides on perfectly... and can be one coat, 2 coats or even three, depending on how deep you want the colour.
Obviously, if you want the colour to last longer, you need to apply more than 2 coats.
I am in love with this lipstick, as it moisturises and lasts for hours after applying...