Model Jerry Hall warned her former love rival Janice Dickinson off her man Mick Jagger by threatening her with a gun, according the reality TV star's sister The models came to blows when Dickinson began an affair with Jagger after meeting him in the notorious New York nightclub Studio 54 in the late 1970s.

And Hall threatened violence when she rumbled the affair, according to Dickinson's sister Alexis Mayer.

Mayer says, "People used to strip and have sex on the balconies and clubbers used to ride on to the dance floor on motorbikes. Janice met Mick there. She said he was the best kisser ever, and one of the best lovers she every had Afterwards, she said she was warned off Mick by his girlfriend Jerry Hall. Janice says Jerry told her that she had a gun and knew how to use it. She got the message."

-Janice Dickinson Pictures

(This news article provided by World Entertainment News Network)