Worth Any Price by Lisa Kleypas

What is the price of love?
Nick Gentry is reputed to be the most skillful lover in all England. Known for solving delicate situations, he is hired to seek out Miss Charlotte Howard. He believes his mission will be easily accomplished — but that was before he met the lady in question.
For instead of a willful female, he discovers one in desperate circumstances, hiding from a man who would destroy her very soul. So Nick shockingly offers her a very different kind of proposition — one he has never offered before.
He asks her to be his bride.
And he knows that this will be much more than a union in name only. For he senses what Charlotte does not yet know — that her appetite for sensuality matches his own. But what Nick learns surprises him. For while London's most notorious lover might claim Charlotte's body, he quickly discovers it will take much more than passion to win her love.

This is the third book in the Bow Street Runner Series.

So Nick and Lottie marry. Lottie because she wants Nick's protection. Nick because he desires Lottie. Nick here is a very skilled lover. He learned all his moves from a famous madam. So we have a few steamy love scenes. We also have a shower scene. Seems showers were just being introduced. What amazed me is that after Lottie has her first shower, the servent says she can have another in a few hours. Because that's how long it takes for the water to heat!

Anyway~ We have Nick is also fighting his personal demons. When he was 14, he was sentenced 10 months to a prison hulk. During his sentence, he saw things that no one should have to. He keeps his distance from Lottie afraid once she learns the truth, she'll leave him.

All in all a good read. I liked Lady Sophia's Lover more, but enjoyed this one more than Someone to Watch Over Me. I give it a B.

Again the order for the Bow Street Runners Series are:

Someone To Watch Over Me
Lady's Sophia's Lover
Worth Any Price