Slightly Wicked - Mary Balogh

Lord Rannulf Bedwyn is a hard man to resist. To Judith Law, Rannulf is simply a dream come true, a heroic stranger with whom she will allow herself one night of reckless passion before she must settle for the dreary life of companion to her wealthy aunt. However, a shock is in store for her when that same stranger arrives at Harewood Grange to woo her cousin. Judith holds firm against Rannulf's advances, both honourable and otherwise. But then scandal rocks the household and threatens her name and her very liberty, and it is Rannulf who rides to her rescue. But can true love grow out of something ever so slightly wicked?