well. I think, it's like a person marrying a step sister. Though
not related, BUT still related.
And you want to call your Aunt as your mother-in-law? And your
mum and your aunt become in-laws? And if your grandparents are the
traditional type, they'll probably say they carry one less
grandchild in comparison to both you and your cousin having
different spouse.
You can do whatever you want,because you have a choice. But
ultimately you'll just have to face the consequences; how people
will look at you two, how your child in the future will be affected
by your decision now. and please don't state the 'love knows no
boundary' thing, or 'this is the 21st century,times have changed'.
I think it all goes down to principles.
Apologies if it sounds offensive anywhere.