Blac Chyna Sex Tape Released By Cardi B’s Bestfriend Star Brim. Now I have no idea how or where Star got it from but she claims it was posted on someone IG page. Star says she has no beef with Blac Chyna but she can post whatever she wants on her IG page. Blac Chyna’s ex Mechie claims he is the guy in the video and isn’t too happy since his music is about to drop. I smell a rat if you ask me.