Singer Miley Cyrus has been dating model Patrick Schwarzenegger since November, but their two families may have moved even closer as it has been reported that Braison Cyrus, Miley's brother, has been going out with Christina Schwarzenegger, Patrick's sister.

"We now know ... 20-year-old Braison began hooking up with 23-year-old Christina (in December)," TMZ reports. "If both couples get married, Braison will be Miley's brother-in-law and brother, while Christina will be Patrick's sister-in-law and sister."

On Jan. 3, Braison posted pictures of him with Christina on his Instagram account, which started the speculation that the two might be dating.