The actress, 37, told Vogue she first heard about the Covid-19 pandemic at the World Economic Forum in January 2020, and said the pair "made quick decisions about the most responsible things to do" for the sake of their health.
"Nick is a Type 1 diabetic, so we felt it was important to go into quarantine almost immediately," she reflected. "(We) made sure our family was taken care of - we checked in on people and explained what the coronavirus was..."
She added, "I'm so grateful we're together at this time, and that we weren't stuck in different parts of the world because we both travel so much."
The "Baywatch" star explained the two are now using their free time to work on their creative skills including learning the piano, joining hip-hop dance classes and writing a book.
It comes after the "Sucker" group was forced to axe nine planned shows at the Park Theater at Park MGM in Las Vegas from April 1 to 18 as part of their new Jonas Brothers in Vegas residency show due to the coronavirus pandemic.