'OutDaughtered': First All-Girl Quintuplets Head Into Second Season of TLC Series

"They sleep and we sleep, so we're happy," said mom Danielle Busby.

Over the weekend, the Busbys packed up their girls to travel on their very first airplane ride from their home in Texas to New York City -- one of the many challenging tasks mom and dad have faced caring for a total of six children.

"They sleep and we sleep, so we're happy," said mom Danielle Busby, with a laugh.

"The hardest thing is just literally the logistics of doing anything, like simply putting [them] in the stroller, getting in the car," she added. "I mean it takes about 20, 25 minutes just to get all of the babies in their car seats strapped in. Getting up, going to the grocery store, it's stuff like that that is just so complicated."

The Busby quintuplets came in the world in April 2015 at the Woman’s Hospital of Texas.

They were the first all-female quintuplets to be born since 1969.

"OutDaughtered" premieres tomorrow on TLC.