“I’ve started saying I’m 31, so now she’s three years older than me. I'm a problem solver,” Erin wrote.
This didn’t sit well with McPhee who replied, “@erinfoster, stop blowing my age cover! The day we say I do, I’m shipping you and your sister off to Switzerland.”
The comment was a clear reference to the 1998 Parent Trap reboot starring Lindsay Lohan, in which the evil Meredith Blake (Elaine Hendrix) threatens to ship Hallie and Annie Parker to boarding school in Switzerland.
Erin quickly got the reference, replying, “@katharinemcphee omg you’re gonna Parent Trap us!!! I knew it.”
It’s clear the family likes to have fun together and aren’t afraid to address the extreme age difference between the 68-year-old David and his future bride.