My Hot Stepbrother Is My Mate

Isabel was devastated and distraught after receiving a sincere rejection from her boyfriend. Although she had intended to spend the holiday at her grandmother's house, she ended up becoming involved with a stranger and having a one-night stand with him.
When her mom introduced her fiance to Isabel, she was shocked to discover that her step father, Mr Walton had a son who turned out to be Derek– the guy she had a one night stand with.
Isabel struggled with her affections for Derek and the knowledge that he would one day become her stepbrother. Anticipating her first shift, she hoped to find her mate and get over her feelings for Derek.
What happens when an unexpected twist occured and she discovered that Derek was her true mate? As she tried hard to distance herself from him because she saw him as nothing more than her stepbrother, will she continue to ignore the bond with him? What happens when Derek's true identity as the Alpha's son was finally revealed? And what happens when more secrets come to light about why he and Isabel were fated together?