Prime Video’s Culpa Nuestra has dominated global charts since its October 16, 2025, premiere, but the real headline isn’t the 50 million viewing hours in week one—it’s the blistering on-screen bond between leads Noah Morgan (Nicole Wallace) and Nick Leister (Gabriel Guevara) that’s got fans convinced the forbidden step-sibling romance is bleeding into real life. The Spanish-language finale to Mercedes Ron’s Culpables trilogy, which follows the volatile love story of a rebellious heiress and her brooding stepbrother, has turned Wallace and Guevara into overnight sensations, with their palpable tension fueling endless speculation about off-screen sparks.

The film picks up four years after Culpa Tuya‘s gut-wrenching cliffhanger, thrusting Noah and Nick into a high-stakes reunion at a lavish New York wedding. Now adults navigating careers, new relationships, and unresolved trauma, the former teens are forced to confront whether their explosive connection was a youthful mistake or an inescapable fate. Wallace, 23, delivers a career-defining performance as Noah—a once-reckless party girl now channeling her pain into a fledgling art career—while Guevara, 24, embodies Nick’s evolution from reckless playboy to a haunted CEO-in-training haunted by family secrets and near-fatal mistakes.

Their chemistry detonates in the film’s opening sequence: Noah, dressed in a sleek black gown, locks eyes with Nick across a crowded ballroom. The camera lingers on Guevara’s clenched jaw, Wallace’s sharp inhale—a silent conversation that speaks volumes. “That look wasn’t scripted,” director Domingo González revealed in a Variety interview. “Nicole and Gabriel just… connected. We rolled for three minutes straight. You can’t fake that.” The moment has racked up 25 million views on TikTok, with fans slow-motion editing it to Billie Eilish’s “Birds of a Feather” and captioning: “This isn’t acting—this is longing.”

Social media exploded within hours of release. The hashtag #NoahAndNick trended worldwide, amassing 2.1 million posts on X alone. “They look at each other like they’ve been married for 10 years and just found out they’re soulmates,” one viral tweet read, garnering 150,000 likes. Another user posted side-by-side photos of the actors on set versus red carpet appearances: “Tell me they’re not dating without telling me they’re not dating.” The speculation intensified when Wallace and Guevara were spotted leaving a Madrid nightclub together two weeks before the premiere, both wearing matching leather jackets—Guevara’s arm casually draped over her shoulder.

Wallace and Guevara have played coy about the rumors. In a joint Elle Spain cover story, Wallace laughed off the questions: “Gabriel is like my annoying older brother—except when the cameras roll, and suddenly he’s… intense.” Guevara added fuel to the fire, smirking: “Nicole makes it easy to fall into character. Sometimes too easy.” Their real-life friendship began during Culpa Mía rehearsals in 2022, where they bonded over late-night script readings and shared playlists. “We’d stay up until 4 a.m. arguing about Noah and Nick’s motivations,” Wallace told Cosmopolitan. “By the time we filmed Culpa Nuestra, we knew these characters inside out—and each other.”

The trilogy’s success—Culpa Mía grossed $18 million on a $4 million budget, Culpa Tuya hit 40 million streams in its first month—rests heavily on this dynamic. Ron, who consulted on all three adaptations, credits the actors’ authenticity: “Nicole and Gabriel are Noah and Nick. Their real-life banter, the way they challenge each other—it’s all there on screen.” The final film’s most talked-about scene comes midway: a rain-soaked confrontation outside a Manhattan gallery where Noah’s art is being exhibited. Nick, having flown in unannounced, corners her against a brick wall. “You think you can just erase us?” he growls. Noah’s response—a trembling “We were kids”—crumbles into a kiss that’s equal parts desperate and devastating.

Fans have dissected every frame. One Reddit thread with 12,000 upvotes analyzes the kiss: “Watch Nicole’s hand—she grabs his jacket like she’s drowning and he’s oxygen.” Another points out Guevara’s micro-expressions: “His eyes close a full second before their lips touch. That’s not acting—that’s wanting.” The scene’s rawness comes from real vulnerability; Wallace revealed in a Vogue Spain interview that she was actually crying from exhaustion after 14-hour shoot days. “Gabriel just held me until I was ready. That’s the trust you see.”

Their physical transformation for the roles adds to the allure. Wallace, known for lighter fare like Skam España, gained 15 pounds of muscle for Noah’s “I’ve survived hell” physique, while Guevara bulked up with a rigorous boxing regimen to embody Nick’s physicality. “Nick uses his body like armor,” Guevara explained. “Every punch, every tense shoulder—it’s protection.” Off-screen, the actors’ contrasting styles—Wallace’s soft-spoken elegance versus Guevara’s tattooed intensity—mirror their characters, making red carpet appearances electric. At the Madrid premiere, Wallace wore a custom Balenciaga gown with a plunging neckline; Guevara complemented in a tailored black suit, his hand never leaving the small of her back.

The forbidden aspect, while central to the plot, takes a backseat to emotional authenticity in Culpa Nuestra. Unlike the first two films’ teen angst, this installment explores adult consequences: Noah’s struggle with independence versus security, Nick’s battle with inherited toxicity. A pivotal scene shows them in therapy—separately—before a joint session where raw truths spill: Noah’s fear of abandonment, Nick’s guilt over a near-fatal car crash that scarred them both. “We wanted to show growth,” González said. “They’re not just hot—they’re healing.”

International appeal has skyrocketed the phenomenon. In Brazil, #NoahENick trended for 72 hours straight. Vietnamese fans created a 500-member Facebook group dedicated to translating every interview. U.S. viewers, discovering the trilogy via Prime Video’s algorithm, have pushed it into Netflix’s global Top 10 shadow charts. “It’s After meets 365 Days but with actual emotional stakes,” one BuzzFeed listicle declared.

Critics praise the evolution. The Hollywood Reporter called it “the rare trilogy finale that earns its happy ending,” awarding 4/5 stars. IndieWire noted: “Wallace and Guevara don’t just sell the romance—they make you believe in second chances.” Some detractors argue the plot leans too heavily on melodrama—corporate espionage, surprise pregnancies, a villainous ex—but acknowledge the leads’ magnetism carries it. “You forgive the soap opera because Noah and Nick feel real,” Variety conceded.

Behind the scenes, the actors’ bond deepened during a grueling 2024 shoot schedule. Wallace suffered a minor ankle injury during a chase scene; Guevara carried her between takes. “He’s annoyingly protective,” she joked on Instagram, posting a photo of him piggybacking her on set. Guevara responded with a heart emoji—fueling more speculation. Their social media interactions—playful comments, shared Stories—keep fans fed between releases.

As Culpa Nuestra closes the chapter with Noah and Nick’s hard-won wedding—a sunrise ceremony on a Barcelona beach, baby in arms—the future remains open. Ron has teased potential spin-offs focusing on secondary characters, but fans demand more Noah/Nick. A Change.org petition for a honeymoon special has 80,000 signatures. Wallace and Guevara, contracted for press tours through 2026, seem game. “If the fans want more, we’ll give it to them,” Guevara told People en Español.

For now, the world watches—and ships. Noah Morgan and Nick Leister aren’t just characters; they’re a phenomenon. Their beauty, their pain, their undeniable pull—it’s the kind of love story that doesn’t just entertain. It consumes. And with Wallace and Guevara’s real-life connection mirroring their fictional one, the line between acting and reality has never been blurrier.