Jaimie Alexander on Peter Facinelli Engagement: I Never Thought I'd Get Married & Have Kids

Jaimie Alexander shows off her unbelievable abs on the cover of Shape magazine’s March 2016 issue, on newsstands February 9.

Here’s what the 31-year-old actress had to share with the mag:

On being engaged to Peter Facinelli: “I never saw myself getting married or having children. It just wasn’t on my agenda. But being with Peter [Facinelli, who played a vampire in the Twilight series] is the best-case scenario, because he has these three beautiful kids and I’m so happy to be in their lives.”

On her push-up contest with Arnold Schwarzenegger: “I made a movie called The Last Stand with Arnold, and everybody went to the gym together. It was super intimidating to work out with him because he was curling a gazillion pounds, but I did it. On set, the crew had a perfect push-up contest, which Arnold supervised. I lost, but I learned that I can do 25 of them, so I felt pretty good about it.”

On her prison workout: “I do what’s called a prison workout – a lot of sprint-interval work and burpees – which I have a love-hate relationship with. My latest obsession is Valslides by Valerie Walters. You can use them anywhere, on hardwood floors or carpet. I do lunges, push-ups, pikes and ab work with them. I also have a TRX band and a jump rope in my trailer. And I love swimming. It’s a great low-impact high-cardio workout. I never did it as a kid, but for Blindspot, I trained with a Navy SEAL.”

For more from Jaimie, visit Shape.com.