I’m using a stiff angled brush for extra control to make sure I get it perfect. Fill in the lips with a generous coat of Amelia (MAC Dark Side). It sounds like a lot of work to use a brush, but it’s pretty quick once you get the hang of it.
Fun fact: There actually IS a raspberry lipstick called Aviatrix made by The Elixery Cosmetic house. Unfortunately I couldn’t get it down here, but if you live in Minnesota, you’re in luck!