
Book 3 of 4 in Smythe-Smith Quartet
The Sum of All Kisses
by Julia Quinn
He thinks she's an annoying know-it-all...
25 year old Hugh Prentice has never had patience for dramatic females, and if Lady Sarah Pleinsworth has ever been acquainted with the words shy or retiring, she's long since tossed them out the window. Besides, even if Hugh did grow to enjoy her company, it wouldn't matter. A reckless duel has left this brilliant mathematician with a ruined leg, and now, unable to run, ride, or even waltz, he could never court a woman like Sarah, much less dream of marrying her.
She thinks he's just plain mad.
21 year old Sarah has never forgiven Hugh for the duel he fought three years earlier, the one that forced her cousin into exile, nearly destroying her family. But even if she could find a way to forgive him, it wouldn't matter. She doesn't care that his leg is less than perfect, it's his personality she can't abide. But when the pair is forced to spend a week in close company, they discover that first impressions are not always reliable. And when one kiss leads to two, three, and four, the mathematician may lose count, and the lady may, for the first time, find herself speechless.
- Spice
- 3/5
- Burn
- Medium
- Pages
- ~384
- Ending
- HEA
HEA means happily ever after: they end up together, for good.
How spicy is The Sum of All Kisses?
The Sum of All Kisses is a 3 out of 5 on our spice scale: steamy (open door). On-page sex scenes, a handful of them, with some detail. Spice supports the plot. Spice starts around the middle.
- Steam: Open door
- Burn: Medium burn
- When: Spice starts around the middle
- Pairing: One man, one woman
- POV: Third person, dual POV (both leads)
- Ending: Happily ever after
Content warnings
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Show 3 content warnings
- Sexual assault
- Kidnapping
- Suicide / suicidal ideation
Our editorial notes, which may be incomplete. If something is a hard limit for you, check the author's own content notes too.
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The Sum of All Kisses: quick answers
How spicy is The Sum of All Kisses?
The Sum of All Kisses is a 3 out of 5 on our spice scale: steamy (open door). On-page sex scenes, a handful of them, with some detail. Spice supports the plot. Spice starts around the middle.
Is The Sum of All Kisses a standalone?
No. The Sum of All Kisses is book 3 of 4 in Smythe-Smith Quartet. Start with Just Like Heaven. The series is complete.
What tropes are in The Sum of All Kisses?
The Sum of All Kisses features enemies to lovers, disability rep, regency. It is a medium burn M/F romance that ends with a happily ever after.
Does The Sum of All Kisses have content warnings?
Our notes for The Sum of All Kisses include: sexual assault, kidnapping, suicide / suicidal ideation. This list may not be complete; check the author's own content notes if anything is a hard limit for you.
What should I read after The Sum of All Kisses?
If you loved The Sum of All Kisses, try Lord of Scoundrels by Loretta Chase, A Night to Surrender by Tessa Dare, The Duke and I by Julia Quinn. They share its enemies to lovers and disability rep energy at a similar spice level.

















