Kathryn, The Kitten (The Real Duchesses of London #1)

Regency England just got real(ity)
Episode 1: How Kathryn Got Her Passion Back
Kathryn, Duchess of Harrington, has the perfect life: a handsome duke for a husband, riches to spare, a house in Mayfair, and the right group of friends. The only thing she doesn't have is her husband in her bed. But she's about to change that. Enlisting the aid of her best friend, Linnette, who knows about these things even though she's a duchess herself, Kathryn begins her seduction plan.
But Linnette knows a secret and it involves Kathryn's husband. And, when that comes out, Kathryn's marriage isn't the only thing at stake. Can you say Afternoon Tea Catfight?

This is a 30,000 word novella.