Revenge is Sweet: Getting Even / Kiss and Tell / Settling the Score (Revenge Is Sweet, Book 1) by Sharon Kendrick
Kiss and Tell
Cormack Casey had turned Triss's life upside down and hurt her deeply. They hadn't seen each other since the night their son was conceived! Now she planned to tell Cormack he was a father... and leave.
Settling the Score
Dominic smiled as his mind lingered on the pleasurable retribution he was going to exact. He had waited five years and now it was high time that he settled a score with delicious Romy Salisbury.