Whenever I am doing a beauty event, I always include lip liner in my lipstick application. A lot of women are not to sure as to why they need lip liner when they apply their lip color, especially when the lip liner sometimes costs more than the lip color, but trust me it is worth it.
Muse Lip Crayons are smudgeproof, water resistant, and super smooth. I apply this to my entire lip prior to applying lip color. This method prevents my lip color from feathering, but also from bleeding onto my teeth and chin. Below is my lipstick routine, I always use lip liner and I think you should as well!