What's a romance book without a little sPiCe?

This is a great way to explore different themes and tropes within adult romances.

Note: many of these books have multiple tropes in them. To complete the challenge, the book's main theme must fit the trope.
Additional note: Please make sure you're old enough to read these books and that you check your triggers! These tropes are general enough that you can find books that fit your comfort level of spice.

Challenge Prompts