Invitation question

when adding both parents to the invitation which format looks better:

mr and mrs brides parents
request the honor of your presence
at the marriage of their daughter
bride
to
groom
son of
mrs. grooms mom
and mr. grooms dad

or

mr and mrs brides parents
request the honor of your presence
at the marriage of the daughter
bride
to
groom
son of mrs grooms moms
and mr grooms

the difference is the 'son of'. should it be on its own line?

we listed both parents names as

Moms full name and dads full name & last name

The first one just flows better