Originally Posted by ShaniFaye

If you look at it from a religious standpoint.... cousins having sex with cousins is not one of the forbidden relationships as defined in Leviticus where as sex between "steps" was

Between parents and children Leviticus 18:7-8
Between stepparents and stepchildren Leviticus 18:8, 17
With your paternal or maternal aunt Leviticus 18:12-13
With your uncle or aunt Leviticus 18:14
Between brother and sister and half-brother and half-sister Leviticus 18:9
Between stepbrothers and stepsisters Leviticus 18:11
With your daughter-in-law Leviticus 18:15
With your sister-in-law Leviticus 18:16
With your granddaughter Leviticus 18:10
With your step-granddaughter Leviticus 18:17[