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Sweet Obsession: Sins of the Father, Book 3

Riley Hart and Liam DiCosimo
4.4 / 5.0
Published: 2026

Description

Rory is a whirlwind of chaotic energy, a man constantly battling the shadows of his upbringing and the restless nature inherited from his father. He lives life on the edge, teetering between the darkness of his past and the desperate need for a tether to hold him steady. That anchor arrives in the form of Cillian, a man whose presence is as calming as a melody played on a piano and whose devotion borders on the obsessive. In this final installment of the Sins of the Father series, the intensity of their connection defines the narrative. Theirs is a romance marked by a profound, magnetic pull, where the stalking and the hunt are transformed into an act of ultimate protection and sweetness. Cillian becomes the peace in the storm, the one person who truly sees the man behind the chaos. As they navigate the lingering threats of their heritage, their bond deepens into something unshakable. This story balances the grit of romantic suspense with a tender, heartfelt exploration of finding home in another person. It is a raw, emotional journey of two souls who refuse to let go, proving that even the most damaged hearts can find safety in each other.

Customer Reviews

Top 2 from Amazon
S
Sara Husser
February 24, 2026
Verified Purchase

🖤✈️🍒But I found you. You let me find you, and I reeled you back in❤️🎸🍒

"And when I get lost, sad like my mom or wild like my dad, it's Cillian who settles me down--talking to me, playing the piano for me, being my friend. My person." "Tell me you don't find me intriguing too. You want more, want to know more. I'm under your skin already, and strangely, you're under mine." "You want to play with me too. You want to be my pet. You want to f*** me and fight with me, don't you?" "I don't need him. I've never f****** needed anyone, and I'm not about to start now, but I've never had someone claiming me and fighting for me that way either. Not even my own mom." "You don't know me." "Maybe not, but I see you." "God, I'm so glad I robbed you." "I'm so glad Iet you. It would suck if you were dead." "I don't know what this is with Rory either. I just know I want it. I so rarely get what I want in my life, and I'm not walking away from this until I have to." "But I found you. You let me find you, and I reeled you back in." "Like he gets my quirks, gets all those bits and pieces inside me that make me stand out from everyone else. Like he holds space for them, wants to nourish them." "You're mine. I don't care if you're theirs too, but you're mine." "Look at me." "Like there's anywhere else my eyes would be." What a phenomenal and amazing end to this series. I am so sad that this series ended 😭. This is definitely one of my new top series and favs by Riley. I felt like the series came full circle in this one and wrapped up beautifully. I have…
Z
Ze
February 12, 2026

Soulmate achievement unlocked

This book was a really beautiful way to wrap up the family of what was once 4, and is now 8. The love shared between all of the baby mobsters is legendary. I wish I knew love to such a degree, it’s something really special. That said, I didn’t connect with this book as much as the others, which surprised me because I love Rory’s chaos and was excited to see who could fit within not only his family, but his mind as well. My only gripe is there is A LOT of emphasis put on the fact that Rory and Cillian aren’t in love, they’re just each other’s people and brothers, but more than that but less than lovers, and a piece of each other. I fully understand the fear in having people misunderstand the message of the story, and I remember RH preempting book 2 with a blurb letting us know this isn’t a poly relationship, but in this book it was pushed to the degree where it interrupted the flow of conversation. Especially with each other. The family knows their dynamic, re-explaining it in casual conversation like y’all haven’t known each other since you were 5 is just unnatural and took me out of the story sometimes. I would’ve liked to feel the relationship between Rory, Cil, Ollie and Shai without having to be told their dynamic directly, in detail, with sources noted, and a how-to-be-a-sexy-platonic-friend tutorial every chapter. But don’t let my haterade deter you. I absolutely did not hate this book. From 1 book to the next, the strength in love increases so strongly, and my…