Vanessa Wants Nick on a Tight Leash!

Should Vanessa Minnillo loosen her leash on Nick Lachey? "Vanessa was enraged" when a group of models wanted to introduce themselves and take photos with Lachey at Retox Rock Bar on Tuesday night, a witness reports. "She told security to move the models back." The spy says Minnillo forced Lachey to "sit at a table of only guys." After a few glasses of champagne, she started blowing kisses to Lachey - who was "rolling his eyes," and talking football with USC linebacker Brian Cushing. Minnillo's rep, Leslie Sloane Zelnik, says, "This account is incorrect. Vanessa has no insecurities about her relationship."

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