Surrendering to the Rake (Steamy Regency Romance #1)
Georgette Brown

Determined to save her cousin from certain ruin at the hands a notorious rake, Miss Heloise Merrill impersonates her cousin and takes her place at the 'Chateau of Debauchery.' She intends to convince the rake – Sebastian Cadwell, Earl of Blythe -- to turn his attentions elsewhere.
Deprived of his intended guest, Sebastian decides to provide the meddling Miss Merrill a much deserved set-down. But when things take a decidedly hot turn, he finds he wants to go beyond a simple set-down.
Can Heloise stand her ground or will she surrender to the rake?
For a more wicked version of this story, see Em Brown's SUBMITTING TO THE RAKE.