Naming one baby is enough to make many people go somewhat crazy. Naming two is more than twice as bad, and conjoined twins ... I read somewhere about conjoined girls who did not survive: can't remember when or even where, but they were named
Mary Ellen and
Marie Helen.
If these two survive, what are the odds they'll become known as
Leigh and
Lyn? Just for convenience?
And if it were me, and I really needed to have matchy names, I'd aim for meanings:
Helen and
Lucy, or
Anne and
Grace though I dislike
Grace so I wouldn't. But that would be the idea.
Peter and
Simon would be a bit too obvious for boys.