He starred in Disney's Planes in 2013, the year she turned old enough to watch a PG-13 movie.
Dane Cook, 45, has been dating 19-year-old singer/actress Kelsi Taylor for the best part of a year.
While the couple have managed to slip under the radar, they haven't been shy about the relationship on social media.
Each of their Instagram accounts is filled with cosy shots of the two travelling the world as well as hanging out locally in LA.
They shared shots form Christmas, Thanksgiving, and even the teenager's 19th birthday party in October.
Cook, who up until then was exactly two-and-a-half times her age, hashtagged their most recent snap #relationshipgoals.
In one shot of the two on an idyllic beach setting, Kelsi wrote: always smiling with this one — to say i'm grateful would be an understatement.
Last April, he wrote of her: 'My girl @itskelsitaylor is one of my favorite people on the planet. She’s a talented singer but more importantly, she’s a genuine person. Check out her music and get to know her. She’s gonna go far!'
Taylor has stared in a handful of short films, and has performed background vocals for the likes of Demi Lovato and Little Big Town.
Cook meanwhile is unmarried and has no children, although he has been previously romantically linked to Nicole Scherzinger and Julianne Hough.
In 2015 he laughed off reports he was hooking up with the then 22-year-old Miley Cyrus.
Cook most recently starred in Starz's American Gods.