Khloe Kardashian is turning Tristan Thompson's latest NBA game into a family affair ... turning up to his game with a very special entourage -- including their kids.
The reality star and her 2 children with Tristan -- daughter True and son Tatum -- popped up at the Rocket Mortgage FieldHouse Monday ... where the Cleveland Cavaliers are set to face against the Boston Celtics for Game 4 of the Eastern Conference semifinals.