"It's Now Or Never" by Carole Mattews is perhaps not a romance as much as a glimpse into what paths a girl's life might take. At (give or take) forty, you might find yourself lead a glamorous life with a glamorous husband and perfect children. Or you might find yourself stifled in your adventure-less existence. Or you might begin to wonder whether being single with a married lover is the best way to spend your youth.
As you get to know the three sisters and their life choices, you start examining your own. You only live once. What have you got to show for it?