According to ENews, the two were spotted kissing at a grocery store in Los Angeles on Thursday afternoon where the two came to grab a drink and sushi as told by an eyewitness.
It seems that Miley and Cody are longtime friends. On a GQ interview in 2015 Cody expressed his admiration for Miley:
“Miley is one of my best friends and she helps with some of that transitional stuff – trying to escape your childhood. She’s super open-minded and I’m working on becoming more like that.”
Enews also states that this isn't the first time that the two singers have been spotted together in recent days.
Both Miley and Cody have not confirmed the status of their relationship.
Sources: 1, 2, 3