Tom Felton and Emma Watson are about as close as former co-stars can be.
The duo starred in "Harry Potter" for the better part of a decade, but played rivals in two very different houses: Slytherin and Gryffindor.
But off screen, the duo have acted as music teacher, photographer and simply friend to one another.
(MORE: Mesmerizing new 'Harry Potter' covers out today to mark the series' 20th anniversary in US)The internet lost its mind Monday when Felton posted a pic of him teaching Watson to play guitar.
"Quick learner," he wrote.
Some of the comments from fans included, "I wanna cry. Really wanna cry" and "Feltson," a combination of the two actors' names.
"DRAMIONE!!!! more than 15 years waiting for this," was also used, combining their characters' names, as well.
(MORE: Why 'Harry Potter' fans are freaking out about 'Fantastic Beasts' sequel title)But this isn't the first time the friendship has sent "Potter" friends into a tizzy.
In February, Watson posted a solo pic, but wrote, "Friends capture you best" and gave Felton the photo credit.
And even before this, the duo shared a beach selfie, with Watson plugging her friend's work.
"Tom’s @origin_series is out on 14th November. Congrats dear friend," she wrote.
To make things ever better, Felton's most recent Insta post doesn't feature Watson, but does prove what a friend and ally to women he is.
"Women do it better," he wrote, noting that the photo was taken by one "EW."
Looks like Malfoy really was a hero this whole time -- even after the series ended.