But wait! The source dished much, much more:
[Image via Splash News.]
They must have one STRONG bond!
Actually, KStew was spotted just this past weekend hanging out with Riley at her mom Lisa Marie Presley's birthday party at No Vacancy in El Lay.
Perhaps it was time that healed this gaping wound??! After all, the alleged hook up did happen wayyy back in July of 2013!
Not to mention, Riley is wayyyy too distracted by her new BF Ben Smith-Peterson to mack on Rob anymore!