The steamy romance of Mercedes Ron’s Culpables trilogy has long captivated readers and viewers with its whirlwind of forbidden love, high-stakes drama, and pulse-racing twists. But with the October 2025 release of Amazon Prime Video’s “Our Fault” (Culpa Nuestra)—the third and final installment in the film adaptation—fans got something unexpectedly tender: a heartfelt glimpse into parenthood. At the story’s core, protagonists Nick Leister (Gabriel Guevara) and Noah Morgan (Nicole Wallace) evolve from fiery step-siblings locked in a turbulent affair to devoted partners navigating the uncharted waters of raising their newborn son, Andrew—affectionately dubbed baby Andy. What unfolds on screen, and in the behind-the-scenes footage shared by the cast, is a raw, relatable portrait of new parenthood that has struck a chord far beyond the trilogy’s YA romance roots, blending exhaustion, elation, and unbreakable bonds in a way that’s proving to be the series’ most enduring legacy.

For newcomers to the franchise, the Culpables saga—kicking off with 2023’s “My Fault” (Culpa Mía) and followed by 2024’s “Your Fault” (Culpa Tuya)—chronicles the electric chemistry between Noah, a rebellious teen uprooted from her life in the U.S., and Nick, the brooding heir to a sprawling automotive empire. Their relationship ignites amid family mergers, jealous exes, and corporate intrigue, but it’s laced with the kind of messy authenticity that turned the books into international bestsellers. By “Our Fault,” the narrative leaps forward four years, finding Noah graduated and carving out independence through odd jobs, while Nick grapples with his grandfather’s legacy at the helm of Leister Enterprises. A surprise pregnancy revelation—tied to a fateful night at Jenna and Lion’s wedding—thrusts them back together, forcing reconciliation amid lingering resentments and external threats. The film’s climax delivers not just marital vows but a family forged in fire, with Andy’s arrival symbolizing hope after months of Nick’s coma recovery and Noah’s solitary bed rest.

On screen, the parenthood arc unfolds with poignant simplicity. After Noah’s water breaks prematurely, a harrowing labor sequence—complete with stuck contractions and medical urgency—culminates in Andrew’s cries echoing through the delivery room. Nick, ever the protective force, stays glued to her side, his usual alpha bravado softened into wide-eyed awe as he holds his son for the first time. Scenes of the trio at home capture the everyday poetry of new parents: Noah’s bleary-eyed feedings at dawn, Nick fumbling a diaper change with comically earnest focus, and stolen moments where they gaze at Andy’s sleeping form, whispering dreams for his future. It’s these vignettes—intercut with high-drama chases involving vengeful ex-employee Briar and Noah’s sleazy ex-therapist Michael—that ground the film’s otherwise operatic tone. As one Variety reviewer noted, “In a trilogy built on acceleration and collision, baby Andy becomes the emotional pit stop, reminding us that love’s real horsepower comes from vulnerability.”

But it’s the behind-the-scenes revelations that have fans like the one who tweeted, “Behind the scenes of Nick and Noah as parents with baby Andy will be forever special to me,” declaring these moments “pure magic.” Production on “Our Fault” wrapped in early 2025 under the direction of Domingo González, with Pokeepsie Films—helmed by Alex de la Iglesia and Carolina Bang—emphasizing authenticity in the family scenes. Actual infant actor Elias, just three months old at filming, brought an unscripted charm that director González called “a gift from the universe.” In a recent Instagram Live, Nicole Wallace shared how she and Guevara bonded over real-parent prep: “We read every book, watched every documentary. Gabe would practice swaddling with pillows—hilarious fails included.” Clips leaked from set show Guevara, 23, cradling Elias with a gentleness that mirrors Nick’s arc, while Wallace, 22, recounts a take where the baby’s unexpected coo dissolved the crew into tears, halting production for a group hug.

These off-screen insights peel back the glamour, revealing the logistical wizardry behind portraying parenthood. Filming the birth scene required a closed set, with Wallace’s high-risk pregnancy simulation drawing from Ron’s novel details—bed rest, anxiety spikes, and the terror of early labor. “It was intense,” Wallace told Entertainment Weekly. “We used a mix of practical effects and Elias’s cries dubbed in later, but Gabe holding him? That was all real emotion.” Guevara echoed the sentiment in a Collider interview, admitting, “Nick’s my guy—cocky, damaged—but seeing him with Andy? It healed something in me too. Those late-night feeds we shot at 4 a.m.? Exhausting, but we’d laugh about our coffee addictions post-wrap.” The duo’s off-screen friendship, forged through the trilogy’s grueling shoots across Spain and Morocco, lent authenticity; fans speculate their natural rapport influenced the casting of Elias’s scenes, where improvised giggles between “Nick” and Andy steal the show.

The cultural ripple has been profound. “Our Fault” debuted to 28 million global views in its first week on Prime Video, with the family finale spiking searches for “Nick Noah baby Andy” by 300%, per Nielsen data. Social media exploded with #BabyAndyMagic montages—fan edits splicing BTS footage of Wallace nursing a prop bottle with novel quotes about Noah’s “precious bundle.” TikTok challenges recreate the diaper scene, amassing millions of views from parents sharing their own “newbie fails.” Even Ron, the trilogy’s author, weighed in on X: “Seeing Nick and Noah embrace fatherhood on screen? My heart. Andy’s the ending they deserved.” The film’s portrayal tackles real issues head-on: Noah’s high-risk pregnancy nods to maternal health disparities, while Nick’s post-coma adjustment highlights paternal mental health, earning praise from groups like Postpartum Support International.

Critics applaud the shift from romance to family drama. The Hollywood Reporter dubbed it “a trilogy capstone that trades torque for tenderness,” lauding how Andy’s presence humanizes Nick’s empire-building and Noah’s independence quest. Purists nitpick the rushed pacing—villain takedowns feel tacked-on amid the domestic bliss—but concede the emotional payoff resonates. Box office for the Spanish original topped $15 million domestically, with the English-dubbed version boosting U.S. streams. Merch flies off shelves: Andy-inspired onesies and “Pogues to Parents” tees (a cheeky nod to the step-sib dynamic) dominate Etsy.

Looking back, the BTS magic stems from a collaborative ethos. González encouraged ad-libs in family scenes, yielding gems like Guevara’s off-the-cuff “You’re my whole garage, kiddo” line to Andy, which made the final cut. Wallace’s input shaped Noah’s arc, drawing from her own family stories of resilience. Supporting cast—Martta Nieto as the meddling Rafaella, Ivan Pellicer as the loyal Lion—chimed in with anecdotes: Nieto recalled baking props for a “post-baby feast” scene, fostering set camaraderie. Even animal handler for Thor the dog (who heroically “saves” Andy from Briar) shared how the pup’s tail-wags added levity to tense shoots.

As the trilogy fades to credits, “Our Fault” leaves a blueprint for love stories that grow up. Nick and Noah’s journey—from reckless passion to diaper-duty devotion—mirrors life’s own plot twists. For fans cherishing those BTS parentals with baby Andy, it’s a reminder: the real treasures aren’t in empires or engines, but in the quiet chaos of family. Stream it on Prime Video and let the heart-tugs begin. Who knows—maybe a Culpables family spinoff is next.