Darcy and Fitzwilliam af Karen V. Wasylowski (Bog)

A gentleman in love cannot survive without his best friend... Fitzwilliam Darcy and Colonel Fitzwilliam couldn't be more different, and that goes for the way each one woos and pursues the woman of his dreams. Darcy is quiet and reserved, careful and dutiful, and his qualms and hesitations are going to torpedo his courtship of Elizabeth. His affable and vivacious cousin, Colonel Fitzwilliam is a military hero whose devil-may-care personality hides the torments within, until he finds himself in a passionate, whirlwind affair with a beautiful widow who won't hear of his honorable intentions. Cousins, best friends, and sparring partners, Darcy and Fitzwilliam have always been there for each other. So it's no surprise when the only one who can help Darcy fix his botched marriage proposals is Fitzwilliam, and the only one who can pull Fitzwilliam out of an increasingly dangerous entanglement is Darcy...

Fitzwilliam Darcy and Colonel Fitzwilliam couldn't be more different, and that goes for the way each one woos and pursues the woman of his dreams. Darcy is quiet and reserved, careful and dutiful, and his qualms and hesitations are going to torpedo his courtship of Elizabeth. His affable and vivacious cousin, Colonel Fitzwilliam is a military hero whose devil-may-care personality hides the torments within, until he finds himself in a passionate, whirlwind affair with a beautiful widow who won't hear of his honorable intentions.
Cousins, best friends, and sparring partners, Darcy and Fitzwilliam have always been there for each other. So it's no surprise when the only one who can help Darcy fix his botched marriage proposals is Fitzwilliam, and the only one who can pull Fitzwilliam out of an increasingly dangerous entanglement is Darcy...
Jane Austen Pride Prejudice