A Mistress for Christmas by Jillian Eaton

This Christmas, the Earl of Wilshire is about to be seduced by the one woman he cannot resist…his own wife!

Consumed with work, Nicholas never leaves his study. Busy with her charitable causes, Lavinia rarely makes it home for dinner. What began as a love match that charmed the entire Ton has turned into a marriage between two strangers.
But Lavinia isn’t ready to give up on the only man to make her pulse race and her toes curl. If Nicholas won’t come to her, then she’ll go to him…with a most unusual proposal!

Seven snowy days.
Six sultry nights.

If Nicholas cannot choose between his ledgers and Lavinia by Christmas Eve, then their marriage is truly over. But the Countess of Wilshire has a few tricks up her sleeve…or should we say skirts? This holiday season, one thing is certain: it’s about to get hot.