Select Prime benefits can be shared between two adults in a household. Customers who are Amazon Student Prime members (free trial or paid) or invited guests of other Prime members can't share their benefits. However, other types of Prime members can share select benefits with those types of members.
To get started creating your Amazon Household, go to Create Your Household. Select Add an Adult under "Setup your Household now." Have the other adult verify the existing Amazon account or create a new account.