Given a list of steps and an additional step, determine where the step fits into the original list of steps. A correct answer, correctly places the given step into the set of steps so that it creates a new plausible set of steps. Output must be formatted as 'After step n', where n is the step number after which the given additional step is to be inserted.

Steps: (1) The butterfly starts as an egg (2) The egg hatches to form a larva, also called a caterpillar (3) The caterpillar then forms itself into a pupa, or chrysalis (4) The caterpillar in the chrysalis begins change, a process called mmetaphorphosis (5) The caterpillar completes its metamorphosis and has turned into a butterfly (6) The adult butterfly emerges out of the chrysalis and flys away!
Where does the following step fit into the given list of steps: The carterpillar molts (loses its skin) many times as it grows
After step 2.