The Let Me trilogy by Brooke Fox is a re-release of the Lawton Ridge duet series by Kennedy Fox. They’ve been re-edited and re-covered.
These were originally written as three duets (6 books total) that I merged into one book per couple (3 books total). Each one ends on a happily-ever-after, but there’s a continued subplot from book 1 to 2 and then 2 to 3, which is why you need to read the trilogy in order.

