diff --git a/moto/rds/models.py b/moto/rds/models.py
index ddb799a17..bf08c15a1 100644
--- a/moto/rds/models.py
+++ b/moto/rds/models.py
@@ -654,6 +654,9 @@ class Database(CloudFormationModel):
     @staticmethod
     def default_port(engine):
         return {
+            "aurora": 3306,
+            "aurora-mysql": 3306,
+            "aurora-postgresql": 5432,
             "mysql": 3306,
             "mariadb": 3306,
             "postgres": 5432,
@@ -678,6 +681,8 @@ class Database(CloudFormationModel):
     def default_allocated_storage(engine, storage_type):
         return {
             "aurora": {"gp2": 0, "io1": 0, "standard": 0},
+            "aurora-mysql": {"gp2": 20, "io1": 100, "standard": 10},
+            "aurora-postgresql": {"gp2": 20, "io1": 100, "standard": 10},
             "mysql": {"gp2": 20, "io1": 100, "standard": 5},
             "mariadb": {"gp2": 20, "io1": 100, "standard": 5},
             "postgres": {"gp2": 20, "io1": 100, "standard": 5},