Mark Gastineau’s Son Killian Marcus Gastineau Meets Half-Sister Brittny for 1st Time

26-year-old model Brittny Gastineau was just a child when her father, New York Jets star Mark Gastineau, left her mom, Lisa, for actress Brigitte Nielsen back in the 1980s.

So it should come as no surprise that Brittny has never met her half-brother. While Brittny is still close with her mother and co-star of The Gastineau Girls, she hasn’t seen her dad in 17 years. This weekend, however, Brittany and half-brother Killian Marcus Gastineau met for the very first time. In fact, she had dinner with him.

Brittny and her mother met Nielsen and her husband Mattia Dessi, along with Marcus, for dinner at Il Pastaio in Beverly Hills.

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“It was very weird and surreal,” Gastineau said of the meal, which was organized after her mother ran into Nielsen at Ivana Trump‘s wedding. “I didn’t cry. I’m too tough to cry. But we hugged, we talked about old stories. He said he watched Gastineau Girls in Italy, so he knew what I looked like.”

Brittny says she plans to keep in touch with her new little brother, despite linguistic differences stemming from his upbringing in Italy.

“It’s kind of hard to know someone in just one dinner, so I’m definitely going to stay in touch with him,” she said. “But I’m going to have to learn Italian!”