The Perfect Gentleman — Danice Allen

TEACH ME...
Samantha Darlington's father had been a model of respectability, but Samantha was his secret shame, the illegitimate daughter he'd kept hidden on a remote island for all of her seventeen years. Now rescue by her legitimate half-sister Amanda, Sam is being educated, preened and polished for her coming out, with the help of Amanda's brother-in-law, the dashing and aloof Julian Montgomery.

TO LOVE
Agreeing to tame this rebellious girl, Julian has accepted the challenge to find her a proper husband. Little does he suspect that the lovely Sam has already made her choice. While countless others vie for her affection, Sam had eyes only for Julian! And even as he tries to resist the beguiling woman he has created, Sam is wreaking havoc in his life...determined that she will win his love.