The context of the verses and the culture make clear
that ‘cousins’ or any other role but
blood half-siblilngs
would have made NO SENSE.
The point of the verses is AN EMPHASIS ON THE INTIMACY OF SIBLING RELATIONSHIPS.
NOTHING ELSE MAKES SENSE.
I suppose if one took those verses in isolation without the context of the rest of Scripture, they could conclude it can only refer to siblings. However, narses's post shows otherwise, in the context of more than an isolate verse.
Now, I do realize that in responding I'm potentially subjecting myself to accusations of being a member of a Vatican Cult, of worshipping something called an Ishatar-Mary, of using a fabricated rubberized dictionary, of bowing to a fictional magicsterical, etc. but that comes with the territory where flame bait is sanctioned.