Buzz, Jessie, and Woody in Toy Story 3, though they don't have kids.
Naruto, Sasuke, Sakura.
Peter Pan, Wendy, and Edward.
The Illiad/the Oddessy
Bleach, but the genders are reversed.
Nearly every iteration of TMNT where April doesn't end up with Donnie.
Tarzan, Jane, Terk, (genders are flipped).
Maybe pic related depending on where season 3 goes.