According to the Get Some Songfacts, though the song centers around the line, "I'm your prostitute, you gon' get some," its subject matter is not sex, instead Lykke Li is singing about a woman's power over a man.
Don't pull your pants before I go down
Don't turn away, this is my time
Don't make demands, I don't take none
Just say a prayer that it gon' get done