The Sins of the Biker returns in book 2, The Biker’s Redemption.

Three years have passed since Harley chose revenge over the woman he loved—Serena.
With his father’s death weighing on his shoulders, leaving Serena was a tough choice, but one he had to make. Harley knew it was dangerous for him to kill the man responsible. The consequences—Serena’s life would be in jeopardy.
Harley told Serena that things were over, he left her thinking she was out of harm’s way. What he didn’t count on was that it would lead her into the arms of his enemy’s son.

When Harley learns this and sees them together on their wedding day, anger like nothing he’s ever known washes through him. He’s furious, feels betrayed and should kill them both—there’s one problem, he still loves her.
But how can he win her back when she’s a married woman?

The only way he knows how… by kidnapping her.