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The Billionaire's Forbidden Little Sister

(Billionaire Collection #4)

4.39  ·  Rating details ·  3,682 ratings  ·  393 reviews
Theo Cruz, a New York man known for his family’s billion-dollar empire, Cruz Enterprises, has been indicted this afternoon in the Court of Public Opinion on charges of Bro-Code Conspiracy.

Chief counsel for the prosecution, Caplin Hawkins, spoke candidly about the accusation. “Once thought of as a best friend to many—including myself—Theo Cruz has officially turned his
Kindle Edition, 347 pages
Published November 5th 2019 by Max Monroe LLC
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Average rating 4.39  · 
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 ·  3,682 ratings  ·  393 reviews

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Jenny••Steamy Reads Blog••
I had so much fun reading this one!!!

Definitely one I recommend picking up if you enjoy steam and laughs!!!

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Melanie (mells_view)

Cute fling to lovers romance. It’s also clearly best friend’s little sister romance as well, but that felt like a blip in this story. It’s more about two people who aren’t looking for strings, have a fling, and then unexpectedly want some strings. But then the strings get string-y and they have some bumps in the road. That was probably all confusing, but I enjoyed Theo & Lena’s story. It was steamy, fun, and honestly an easy read.
Max Monroe
Nov 06, 2019 added it  ·  (Review from the author)


Trust us, this is the book you NEED in your life right now!
Hot and hilarious, it is ALL THE ROM COM THINGS!

Currently FREE in KINDLE UNLIMITED and 99 pennies to buy for a VERY short time! (Going to >>>> $4.99)


Things this book is:
+Romantic Comedy
+Billionaire Romance
+Sexy as $&?!
+Laugh out loud hilarious
+My Best Friend’s Little Sister Romance

Things this book is n
Nov 13, 2019 rated it it was amazing
Shelves: 2019, arc
Five rendezvous stars Lena and Theo 💖!!!


Max Monroe never disappoints!

I was waiting for Lena's story since I've read The Billionaire Best Friend.

And it was worth waiting.

"The Billionaire's Forbidden Little Sister" is a witty romance story that will make you laugh on every single page.

Lena and Theo's relationship started as secret rendezvous but what it became was one explosive, beautiful and sweet love story.

If you're looking for a fun romantic comedy book that will make to enjoy trough the
Nov 27, 2019 rated it did not like it
Shelves: reviews
Reading The Billionaire's Forbidden Little Sister was like watching a TV with a bored panda sitting on you with a remote control. There was some shitshow on and you couldn't do anything about it, unless you dared to enrage the panda. ...more
Nov 22, 2019 rated it really liked it
4 Mr. Serious Stars

This book was a light hearted, OTT, charmer! I really liked both MC’s, and the laughs were a plenty! There were also many scenes with some old favorite characters from the “Billionaire Bad Boys,” series. Despite some of the silliness, and predictability, the hilarity won me over! This one has been my favorite in the series, thus far!
Ashley Hampton
Nov 05, 2019 rated it it was amazing
The Billionaire's Forbidden Little Sister is seriously one of the most funniest books I have read thus year. When I say I was die hard laughing from the Prologue until the Epilogue, I mean that with every fiber of my being. It has the perfect blend of, fine a** billionaires, sassy as all get out heroines, a book club to beat all book clubs, and a story line that goes unmatched. This sinfully sweet, hilarious Rom-Com is nothing but a good time.

This duo of authors and their wicked writing skills,
Kelly (the book hussy)
I haven’t laughed that hard in a LONG time. Those book club scenes had me almost peeing my pants. And the scenes with Theo and his gay and fabulous assistant Carey, were the BEST.

Some other new great characters....Pippa (Lena’s English friend from Italy) and Brogan (Theo’s eccentric older brother). They were a part of the scenes that contributed to all the LOL moments.

Now the H/h. I honestly don’t remember Theo from the other books. I do remember Lena. She’s Cap’s little sister and Maybe’s bff
Nov 13, 2019 rated it really liked it
I absolutely loved, quite hilarious
Valeen Robertson (Live Thru Books Blog)

What happens when one sassy, sweet woman meets a gorgeous billionaire while in a foreign country? Why, a hot little romp of course! Then what happens when that woman turns out to be said billionaire's best friend's little sister? Some definite oops!

TBFLS - Teaser 5 AN

I swear, Max Monroes' rom-coms keep getting funnier and sexier and even better with every release because Theo and Lena are FIRE!! I loved everything about these two together. And did I mention the cameos by Cap and gang? Yep. And they made the st
Melissa  ❤️ bookaddict_fanatic
Holy hotness people..... this was one book filled with explosive chemistry from beginning to end. Theo and Lena were two people not looking for anything long term. What happens when you find something so unexpected in the one person you shouldn't? This book was equal parts hilarious, sexy, fun and flirty that I devoured the story in a day. I have fallen in love with these characters and you will too! ...more
Lady Heather
I just couldn't connect with these characters. 😭

I tried, but finally gave up at 60%.😞

Maybe I'll give this book a go some other time.
Red Cheeks Reads
Nov 06, 2019 rated it it was amazing

I absolutely love romantic comedies, they’re at the top of the list of my favorite things to read, and a Max Monroe romantic comedy is a special kind of reading experience for me. What makes their romcoms stand outs in the genre is that while they are wildly hilarious, if the authors were to strip the humor from the story, there would still be a solidly engaging, steamy romance there that could stand on its own. That is a testament to the creativity of this author duo, and speaks volu
Erin Lewis
Nov 06, 2019 rated it it was amazing
5 star review The Billionaires Forbidden Little Sister by Max Monroe

What happens when a smoking hot rendezvous with a beautiful stranger turns out that the woman in question is the little sister of one of your closest friends Caplin Hawkins. This is the position that Theo Cruz finds himself in when he falls for Lena.

The Billionaires Forbidden Little Sister brought a much needed smile and laugh to me this week. From the first to the last page I was totally invested in Theo and Lena’s story. Th
Meegz Reads
Nov 07, 2019 marked it as dnf
Shelves: kindle

ARC kindle received in exchange for an honest review.

Not feeling this one. Very slow to start off and I’m not being pulled into the story at all.

Not for me, but appreciate the chance to read an arc all the same.
Kate R
Nov 06, 2019 rated it it was amazing
Shelves: arcs
Oh my gosh, this book was sooo darn good!! It’s hilarious, lighthearted, fun and charming, and exactly what I needed! This is now my favorite Max Monroe book and they’re all fantastic! It’s the fourth book in the Billionaire series, yet still a standalone. It follows Lena and Theo, who we have seen in previous books.

Theo and Lena meet in Italy in some unusual circumstances. The locations and scenes here were so detailed and amazing! Their meet cute was the best. The banter was so fun! They have
4.5 stars!

Lena is Cap’s sister and from the moment I met her in The Billionaire Book Club  I was excited for her story. She’s fun, flirty, and, sexy and has no trouble getting a guy. However, they only seem to distract her so she goes on a man ban so she can focus on her dreams. She has stuck with it for months but now that her friend wants to go out and party to celebrate the holidays, she lifts the ban for one night only.

Theo is a successful business man who is a bit of a control freak and
Lexi Cubbins
Max and Monroe can do no wrong in my eyes, especially when it comes to this series. Yes, I've rated them all 5 stars and they are all so fluffing brilliant, if someone tells you otherwise they are filthy liars.

Gosh, where to start? In the previous books, Theo was the kind of secondary character who had some witty punchlines but was in the background most of the time. Honestly, until now I could barely remember his name.
But now... Damn, ladies, you NEED to get to know him better. You know, the wo
Kimberly / Love Notes Book Blog
Nov 06, 2019 rated it liked it
Shelves: arc
3.75 stars. This was a cute and fun book! The Billionaire's Forbidden Little Sister is Lena (Caplin's little sister) and Theo's story. Lena is in Italy for fashion school when she meets Theo, who is there on work. The two have an instant connection and chemistry. They agree to no names or details between them as they have an Italian fling for a week. Lena has some insecurities about her past flightiness, so she wants to focus on finishing school and beginning her career in the fashion industry, ...more
Jenn Amy
May 20, 2020 rated it really liked it
Shelves: rom-com, library
The boys are back with their Billionaire Book Club! This book is Theo’s and Lena’s story. Lena is Cap’s little sister and a relationship between them is completely forbidden. Although the title would say otherwise the forbidden part of the storyline was a very small part as these two hook up for a week of passion in Italy and then go their separate ways. Once they return to their lives the two cannot stop thinking about another until they bump into each other again unexpectedly and realize they ...more
Julia Griffis - The Romance Bibliophile

Max Monroe delivered all the laughs, all the feels, and pure romantic comedy PERFECTION with The Billionaire’s Forbidden Little Sister! I absolutely LOVED Theo and Lena’s sexy, hilarious, swoon-worthy, and highly entertaining story. It made me laugh, smile, and swoon like a fool, and I freaking loved every minute of it.

The storyline and characters were beyond phenomenal, and I once again loved and adored Max Monroe’s writing style and flipping hilarious sense of humor. These two ladi
Sofia Lazaridou
Nov 12, 2019 rated it it was ok
The Billionaire's Forbidden Little Sister is a stand-alone book by Max Monroe. It's connected to some of their other recent releases, but if I hadn't told you that (or you knew because you are a fan of the authors) you wouldn't have noticed.

I hate to say this, but the book didn't work for me as much as I wanted it to. I found it hard to finish for some reason, even though none of my pet peeves were included and I love Max Monroe's books. There was something that made me feel a little awkward wh
Sissy's Romance Book Review
The Billionaire's Forbidden Little Sister by Max Monroe is the story of Theo and Lena. If you read the previous book 'The Billionaire Book Club' then you will see some of the previous characters in this book. Lena is the sister to Caplin and Theo is of course Caplin's friend. So with that said this can be a standalone book but just wanted to point that out if you enjoyed that book you might want to continue the love with this book. This is a funny romance story where Lena is in Milan for a year ...more
Nov 08, 2019 rated it liked it
Shelves: arc

** ARC kindly provided in exchange for an honest review. **

In the Billionaire’s world created by Max Monroe, the heroes are loud with no filter, with their big hearts, having now weekly book clubs sessions, working hard and finding their match in some unexpected ways.

As part of the last two bachelors of the group, Theo was having no issues to be married to his job, even with women every minute counted, no time wasted, until his trip to Italy. Until he finally met his match not really knowin
Michele McMullen
Nov 07, 2019 rated it it was amazing
Shelves: arc
I am so in love with romcoms and Max Monroe sure knows who to keep you laughing! I am so excited to once again have the pleasure of visiting this hilariously sexy say anything group of friends.
What happens after a romantic fling in Italy comes home to roost ! When Lena meets a sexy stranger while away at design school she finally is breaking the 9 month dry spell. Theo is Mr. Serious he truly needs to take time for himself and let loose once in a while. That chance meeting is right in front of h
Nov 13, 2019 rated it really liked it
Every time I enter one of Max Monroe’s stories, I know I’m in for quite the steamy and hilarious ride, partly because they create some of the most amazing alpha male heroes in romantic comedies - ones who aren’t afraid to claim who and what they want regardless of the obstacles, but also because the sassy and sultry heroines who they match their leading men up with are their perfect counterparts in every way, making it only a matter of time before they can’t keep their hands off each other, even ...more
Nov 05, 2019 rated it it was amazing
As always, these authors go and deliver an amazing book... They never cease to amaze me.
I started reading their a few months back and with each book I read, the more I fall in love with these two. Just when I thought they can't beat their best work, they go and raise the bar once again, and this book did just that too.

The Billionaire's Forbidden Little Sister was the funniest book I've read by them so far and probably one of the funniest books in general that I have read this year.

Theo and Le
Avid Reader
Nov 08, 2019 rated it really liked it
The Billionaire's Forbidden Little Sister by Max Monroe
4 stars
M/F Romance
I was given this book for an honest review by Wicked Reads.

This is a great spin off of the Billionaire's books. I loved those stories a lot and this one is just as entertaining. You could read this as a standalone, but you'd get more out of the relationships if you knew more about the other billionaires.

The introduction to this book is quite hilarious and I wouldn't skip it. It's a warning and a tease wrapped together.

Ga Books LoverX
Nov 06, 2019 rated it it was amazing
I liked this book, a lot! It was funny and I really got to know the characters. This is surprisingly the first book that I have read by this duo, but I am hooked, lined, and sinked for them! If you are newbie like me then don't worry because there is just a enough backstory to understand the other characters in play other than Theo and Lena and I already started connecting with them!

Lena and Theo were only supposed to have an Italian fling, no feelings- the rules state it. That being said it was
Ruthie Taylor
Nov 07, 2019 rated it really liked it
~~I received a free copy of this book to read and review for Wicked Reads ~~

We have met the billionaires and enjoyed their book club meetings before - but you could read this as a stand-alone ... and then go back and read more of the goodness!

There is (as in many of their wonderful books) a Max Monroe warning at the beginning of the book that you will laugh out loud - and how right that warning always is! Such a lovely mixture of clever words laughter, as well as situational hilarity - perfecti
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About five years ago, a dynamic duo of romance authors teamed up under the pseudonym Max Monroe, and, well, the rest is history...

Max Monroe is the New York Times and USA Today Bestselling Author of more than thirty contemporary romance titles. Favorite writing partners and long time friends, Max and Monroe strive to live and write all the fun, sexy swoon so often missing from their Facebook newsf

Other books in the series

Billionaire Collection (4 books)
  • The Billionaire Boss Next Door (Billionaire Collection, #1)
  • My Brother's Billionaire Best Friend
  • The Billionaire Book Club

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