Us Again - Sequel to Over Again (BWWM)

First Book: Over Again
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Harrison and Reagan are not your average couple. They've been married, got a divorce, and then got married all over again. This time Reagan's here to stay. Flash forward a year and a half later when Reagan discovers that a client of Harrison's is trying to sabotage their relationship. On top of all that Reagan discovers something that'll change both of their lives forever.