Jordan gets back to her roots this week with a fun, quirky, and not too serious regency romance - What I Did for a Duke by Julie Anne Long. While we're still not clear on what was done to get the duke, it's likely something naughty (especially since this is an open door romance!)

https://www.goodreads.com/book/show/8430098-what-i-did-for-a-duke

If you're looking for something similar, try anything by Julia Quinn, Lisa Kleypas or Sherry Thomas.