I am still not sure how determing which set was born first would fix the problem cause one would still be married to two and two married to one. I can give it a go if you would like glassmidnight I would say that my twins were born on
April 14th. If not I like your order better it gives each set a son where mine leaves us with
Valerian and
Maxine with 3 girls unless you like this. I am easy go so just let me know what you prefer.