King of the Outback's Heir by Clare Connelly

A steamy outback encounter...with rural royalty! Rugged billionaire Tate keeps his emotions as inaccessible as the remote outback land he rules over. Until he rescues storm-stranded stranger Sarah and they surrender to a night of desperate passion. The morning brings cruel clarity and Tate ruthlessly rejects her... Adrift since her mother’s death, Sarah blames loneliness for succumbing to Tate’s charisma. But now she’s carrying the cattle baron’s heir and is stunned by his demand: a convenient marriage! Only his every heated glance steers her dangerously off-kilter, as she fights to remember the unbreachable walls around Tate’s heart...