One Kiss Alone by Nichole Van

Ethan Penn-Leith is the most renowned poet of his day—his likeness so widely recognized, he is regularly accosted by adoring admirers. Everyone wants something from him—his time, words, charm, torn bits of his kilt . . . Everyone, that is, but Lady Allegra Gilbert.
Twin sister to the authoritarian Duke of Kendall, Lady Allegra fights for freedom from her brother’s iron-gripped control. She has a plan for her future, after all, one that does not involve her ducal twin. Ethan Penn-Leith with his knee-melting smiles and boyish charm is merely a pretty distraction along the path to independence.
The problem? Ethan and Lady Allegra once shared a life-altering kiss on a rugged mountain road in Italy when she was disguised as someone else entirely. Ever the poet, Ethan turned their romantic kiss into a scandalous, best-selling poem. Now, all of London is clamoring to know the identity of the poet’s unnamed lady.

If she wishes her freedom, Lady Allegra needs to keep her secrets, well . . . secret. Ethan wants nothing more than to uncover all of Allegra’s truths.