[GK]

Marriage is between one man and one woman.

If you go outside those boundaries, then anything is up for grabs.

If the only requirement is for people to love each other, then you must also allow, the one Muslim man with a plethora of wives, two men and a woman, five women, five women and one man, and so it goes.

And if you open that door, then get this possibility - two or maybe even more consenting adults in the same family, whether that be same sex or otherwise.

My two cents.

GK