How does Brittney Sahin keep doing it? Not Mine to Keep is yet another perfect example of why she’s one of my favorite authors. This book isn't just another romantic suspense—it's a deeply emotional ride that blends passion, danger, and the kind of character chemistry that keeps you turning the pages long past bedtime.

Alessandro Costa, the playboy billionaire, and Calliope Anderson, the mafia princess who’s anything but ordinary, have this undeniable connection from the moment they meet. And while it starts as a marriage of convenience (with Alessandro playing the hero), it quickly becomes so much more. You can feel the tension between them building as their “business arrangement” starts to blur with real emotions—those fiery sparks practically leap off the page!

What I love most about this book is how real Alessandro and Calliope feel. Yes, we’ve got the drama, the mafia intrigue, and the steamy moments (seriously, chapter 28!), but beneath it all, they’re just two people trying to figure out life and love in the middle of chaos. Calliope’s strength in the face of her family's dark legacy and Alessandro’s struggle to see himself as more than just a shadow are so relatable, even in their extraordinary circumstances.

Sahin’s talent for weaving suspense into a love story is unmatched. Just when you think you know what’s going to happen, she throws in a twist that keeps you on the edge of your seat. And don't even get me started on the brilliant light vs. dark theme that runs through the book—it’s powerful, and by the end, you can’t help but root for Alessandro to find his way into the light with Calliope by his side.

If you're a fan of romance with a side of mafia drama and a whole lot of heart, Not Mine to Keep is the perfect addition to your bookshelf. Trust me, once you dive in, you’ll be hooked—and you might just find yourself binge-reading the rest of the series, too!

Always a fun ride when Brittney Sahin write a romantic suspense book.

This one kept me on my toes. With some instant chemistry from Alessandro and Calliope. While the father she has stayed very clear of is dying tries to marry her off to one of his underlings she would rather the devil she knows Alessandro.

While it may be a marriage of convenience their attraction is all real. The revenge Alessandro wanted for his family kept tension high, and so many motives to want to take over the mafia throne kept the action going.

Another great win and loved seeing more of the Costa family interactions.

What do you get when you have a teacher who turns out to be a mafia princess and a broken man unable to move on from rejection in his past and turned playboy looking for revenge?
A marriage of convenience with a side of "I can't" and a heap of "my wife"

Definitely a page turner.

Broody Alessandro meets Mafia Princess! Can he keep her safe while guarding his heart? Their relationship is definitely built to last.


The building of characters throughout this book was incredible and certainly leaves you wanting more from others. I can not wait to see Izzy and Hudson finally cross the friendship line.

Not Mine to Keep by Brittney Sahin is a marriage of convenience mafia romance. It’s a fun read full of action, romance, and intrigue!

Calliope, also known as Callie, is our FMC. She is a slightly sassy and independent history teacher and part time singer. Our MMC, Alessandro, is a playboy billionaire, with an interesting side gig of his own. He’s quite protective and a little bit possessive of Calliope. What starts out as a marriage of convenience, leads to a real romance, with undeniable chemistry. Their flirty texts and banter were such a great addition to the story. I also loved the strong bond between Alessandro and his family, and how they pretty much adopt Calliope as one of their own.

This book has action, romance, and some twists and turns, what more can you ask for. Definitely worth a read!

1st time reading this author but it certainly won’t be the last! I am going to have to go back now and read the others just because it was so good! Had the right amount of suspense, hot romance and danger that will keep you on the edge of your sear. So get it and read about Alessandro ad Calliope. And the rest of the family!

I received a complimentary copy of this book from NetGalley. The opinions expressed in this review are completely my own. Thank you for allowing me to review

I have read everything that Brittney has ever written, and her writing is amazing. I really liked the plot and the storyline of Mine To Keep. I liked both Alessandro and Calli and could feel their chemistry throughout the book. The narrators for the audiobook were great and fit how I pictured the characters perfectly. I'm at a weird stage in my life, and reading certain tropes causes me to have to fast forward through scenes and I found myself rolling my eyes when she was being told what to do or the talk of taking a belt to her butt just ugh. That is just a me thing, though, so take that for what it is. Well written as always! I enjoyed the majority of the book!

i tried so hard not to cringe at most of the scenes in the book.

Thank you, NetGalley and Montlake Publishing, for the digital ARC copy. All thoughts and opinions are my own.

#NotMinetoKeepTheCostaFamily #NetGalley

I thoroughly enjoyed this story! I love the storyline, characters, and the twists and turns that make it so I didn't want to put the book down! This series is truly amazing and I can't wait to read the next book!! I listened to the audiobook also and the narrators did a phenomenal job.

This is a book that has a possessive man who while trying to take down somebody and also protect somebody at the same time find himself falling for a mafia princess. You can see the chemistry between the characters from the very beginning and their story has romance, but there’s suspense and thrilled at the same time. This is a good book

What do you get when you mix an up and coming country darling and a bad boy vigilante with ex-ties to the Italian mafia? One smoking hot, edge of your seat adventure that will leave you turning page after page because you just can’t put it down. Alessandro and Calliope are absolutely made for each other. But the trials they must go through to prove that, mostly to her father, are enough to break any couple. Brittney Sahin just keeps better with each subsequent book. And the fact that they all interconnect will keep readers immersed in this world for weeks and months to come. Definitely counting down the time until the next release and this one just barely released!

Thank you to the publisher and Netgalley for an advanced copy in exchange for an honest review.

Calliope and Alessandro....what can I say?? Mafia romance, steamy, some mystery/violence. She's the secret daughter of a mafia boss who wants nothing to do with him, He's going to marry her to save her from that life but doesn't want to fall for her.

I absolutely loved this one and need to check out more from this author! Check it out if you like a romance with so much more.

𝘛𝘳𝘰𝘱𝘦𝘴:
✰ 𝘮𝘦𝘦𝘵 𝘤𝘶𝘵𝘦
✰ 𝘮𝘢𝘳𝘳𝘪𝘢𝘨𝘦 𝘰𝘧 𝘤𝘰𝘯𝘷𝘦𝘯𝘪𝘦𝘯𝘤𝘦
✰ 𝘢𝘨𝘦 𝘨𝘢𝘱
✰ 𝘳𝘰𝘮𝘢𝘯𝘵𝘪𝘤 𝘴𝘶𝘴𝘱𝘦𝘯𝘴𝘦
✰ 𝘮𝘢𝘧𝘪𝘢 𝘳𝘰𝘮𝘢𝘯𝘤𝘦

This book was such a delightful surprise! Mostly because it's my first read by Sahin and I adored it from the start.
It's a fast paced and action packed mafia romance! I loved the setup and found it very original in this genre.
I also liked the idea of pairing a mafia boss secret daughter with a billionaire vigilante type of mmc. It was very cool.

The romance itself was amazing! I loved the chemistry and their tension and I just couldn't wait for them to actually get together.

I highly recommend and am patiently waiting for Isabella and Hudson's book now!

𝘛𝘳𝘰𝘱𝘦𝘴:
✰ 𝘮𝘦𝘦𝘵 𝘤𝘶𝘵𝘦
✰ 𝘮𝘢𝘳𝘳𝘪𝘢𝘨𝘦 𝘰𝘧 𝘤𝘰𝘯𝘷𝘦𝘯𝘪𝘦𝘯𝘤𝘦
✰ 𝘢𝘨𝘦 𝘨𝘢𝘱
✰ 𝘳𝘰𝘮𝘢𝘯𝘵𝘪𝘤 𝘴𝘶𝘴𝘱𝘦𝘯𝘴𝘦
✰ 𝘮𝘢𝘧𝘪𝘢 𝘳𝘰𝘮𝘢𝘯𝘤𝘦

This book was such a delightful surprise! Mostly because it's my first read by Sahin and I adored it from the start.
It's a fast paced and action packed mafia romance! I loved the setup and found it very original in this genre.
I also liked the idea of pairing a mafia boss secret daughter with a billionaire vigilante type of mmc. It was very cool.

The romance itself was amazing! I loved the chemistry and their tension and I just couldn't wait for them to actually get together.

I highly recommend and am patiently waiting for Isabella and Hudson's book now!

If you are new to Sahin, the beauty of her stories is you can pick up any book in any series and not feel lost, this book included. She gives just enough background on characters from previous books. If you have read a Brittney Sahin book before, this book delivers in true Sahin fashion! There is broodiness, stubbornness, and plot twists you don't see coming.

This is a voluntary review of an advanced copy.

This is the second Costa man to get married and Alessandro swore that he would never get married. Even though this book follows Enzo's book, it can be read as a stand alone book.

Calliope thought that she had time before her mafia father forced her to marry but when he finds out that he has a terminal illness, he decides that he isn't going to wait any longer and will have her forcibly brought to him to marry into another mafia family. Good thing there is someone who doesn't want this to happen and uses a favor owed to get Alessandro to "rescue" her.

There are so many twists and turns in this book and secrets that come to light along with past sins that need to be revenged. I don't want to give away any of the secrets so will just say that this was non-stop drama and I could not put this book down!

Can't wait for the next Costa book and Hudson and Izzy are going to have a battle if Constantine can't accept their love or will Hudson feel he can't even try? I am looking forward to find out their story!

This is the 2nd book in the Costa Series by the terrific author Brittney Sahin. This is Alessandro and Calliope (Callie) story! Their chemistry is totally off the charts, my iPad nearly went into meltdown! In this read you will be lead on a roller coaster ride and what a ride it is! Plenty of mystery, angst, slow burn chemistry and anything else that Brittney threw at you! We are also reintroduced to some of the characters from the Dublin night series. Terrific read

It's official. I have fallen for the Costa men and Hudson. It's a good thing they're fictional because I'm not sure I could choose! Alessandro Costa, whew, there is so much under that gruff playboy exterior. You can guess the hurt behind the playboy ways, I mean I've had guy friends and known their reasons behind how they live, and when they fall It's always epic. No different with Alessandro and Calliope's story. A fake marriage quickly turns real as their chemistry and love ignites. The emotion gripped my heart. The twists, danger, action, and edge of your seat suspense kept me captivated and had me anxious at moments. Narration was awesome. Can't wait to see where Brittney takes use with Hudson's story and then Constantine...ohhh I am ready now to learn more about him!

Loved it from start to finish Brittney does it again and loved the love story. The ups and downs and drama and action and suspense was perfect..

I've only read two other Brittney Sahin books before this one, however I can say it's still a solid 4 star read for me.

Brittney is one of the more thorough authors in the romantic suspense genre, in my opinion. Her stories are so layered, with riveting plots and appearances from what I suspect are former characters in other series.

The banter was entertaining, and the fact that it's mafia really sold me. It is honestly probably a five star read if my mood wasn't bouncing so much lately.

I want to go back to read book 1 in the series now too. Looking forward to what comes next from this author. Thank you Netgalley and Montlake for the eARC.