My Lady Original (My Lady Love, #2) by Elise Clarke

A hilarious regency romance where truth is stranger than fiction...

Jack, Lord Darenth is London's favourite paragon, staggeringly handsome, always fashionable, and unshakeably single. But when The Conqueror, a smash–hit novel casts him as a thinly veiled, lovelorn Prince Charming searching for the perfect match, all of society loses their collective heads – and their hearts – and pandemonium breaks all over Jack's well–ordered life. 

Lady Herminone thinks Lord Darenth is handsome enough, when she bothers to think about him at all. For her, he is but the best friend of her own dear friend Sandy, the man she is considering for a husband. But when the sequel to The Conqueror is published featuring her as a drippy Cinderella heroine to Darenth's hero, she is galvanised into action. Ignoring the book doesn't work, so it's best to proceed as if it doesn't matter. Until life starts imitating art, and suddenly the possibility of a love story in truth becomes all too real...