Backing up the report are photos on Instagram of the pair looking quite cozy over the holidays.
Miley, 22, and Patrick, 21, went public with their relationship in November, and the site says that Braison and Christina began seeing each other about a month later.
Meanwhile, Miley has been up to her usual antics… this time posing naked for V magazine. Check out the NSFW pics here.
[Credit: Cheyne Thomas / V Magazine]
The new issue of V Magazine hits newsstands on Jan. 15.