Second Sons of London Series Novels

Dubious about the Duke (Second Sons of London 5) by Alexa Aston
Made for the Marquess (Second Sons of London 4) by Alexa Aston
Empowered By the Earl (Second Sons of London 3) by Alexa Aston
Debating with the Duke (Second Sons of London 2) by Alexa Aston
Educated By the Earl (Second Sons of London 1) by Alexa Aston