You're able to share some of your Amazon Prime benefits. However, you're typically only allowed to share with family members. You're able to add one other adult in your household to your account. Do this by linking both of your accounts using the Amazon Household feature and sharing the payment.
Sharing your Amazon Prime benefits with another person is easy. It's also a great way to cut back on your costs if the other person shares the payment with you. You get to share many of your Prime benefits with the linked account, but not all of them.
Keep in mind that you can't link your account with a teenager, or an adult that doesn't live with you.