Brenda Song Admits the ‘Pettiest’ Argument She and Macaulay Culkin Keep Having

Brenda Song is opening up about her life with Macaulay Culkin, revealing that even their disagreements come with a playful twist. During a recent interview, the actress shared the surprisingly relatable and competitive reason behind their most minor arguments at home.

Brenda Song is giving fans a glimpse into her everyday life with fiancé Macaulay Culkin.

During an appearance on the April 22, 2026 episode of “Cosmo Goes Deep,” Song joined her “Running Point” co-star Kate Hudson for a candid conversation. The discussion covered a range of personal topics, including the dynamics of her relationship with Culkin.

A Relationship Built on Connection

At one point, Hudson asked, “What’s the pettiest thing you and your partner fight over?” Song’s answer highlighted a playful side of their relationship.

Song, 38, shared that their smallest disagreements often revolve around a video game.

“One thing that we can argue about is we do play Mario Kart sometimes, like in bed. And then we get very, very competitive and we will like get like mildly mad at each other, for like cutting me off or like winning, beating me last minute. That’s probably the pettiest thing,” she said.

Song has previously spoken about her relationship with Culkin, 45, describing how their connection developed over time.

The couple began dating in 2017 after meeting at the home of their mutual friend Seth Green. At the time, neither was actively looking for a relationship.

According to Song, that shared mindset contributed to the strength of their bond. Without the pressure of seeking a partner, their connection developed naturally.

A Relationship That Continues to Grow

Song and Culkin share two sons: Dakota, 5, and Carson, 3. While they tend to keep their family life relatively private, Song’s recent comments provide a glimpse into their home environment. Her story about their Mario Kart competitions suggests a relaxed and playful atmosphere.

Since beginning their relationship in 2017, Song and Culkin have built a life together that includes both their careers and their family.

Their engagement in 2022 reflected their long-term commitment, while their shared parenting responsibilities continue to shape their day-to-day lives.

Song’s recent comments show that, even after years together, their relationship still includes moments of humor and competition. Kate Hudson's question, and Brenda Song’s candid admission about her “pettiest” arguments with Macaulay Culkin offers a relatable look at their relationship.

From competitive rounds of Mario Kart to raising their two children, the couple appears to balance their personal and professional lives with ease.