The final piece of evidence comes with the fact that Bella recently liked one of Sam’s Instagram posts, where he’s standing in front of a purple wall.
Nowadays that’s tantamount to asking someone for sex.
He and Trainor shared a passionate kiss during their performance at the 2016 American Music Awards.
"Meghan and I are good enough friends that we can laugh about it now," the star said.
On Saturday, December 17, the night before their daytime outing, the Shake It Up alum and Puth walked the red carpet together at the Miami stop on the 2016 i Heart Radio Jingle Ball Tour.