Mario Lopez pictured with Meagan Cooper

Twenty years after Saved By The Bell and A.C Slater’s still a slut. E! News is reporting that another woman was at the center of the May breakup between Mario Lopez and professional ballroom dancer, Karina Smirnoff, who tangoed their way to love as partners on ABC’s Dancing With The Stars. Former Hooters girl Meagan Cooper, a featured contestant on the ABC Summer series I Survived A Japanese Game Show, says she had a secret romance with Mario for more than a year before breaking things off with the dimple-cheeked cutie in March. Mario was still dating Karina at the time. Meagan says Mario fed her the Most Transparent Cheating Man Line of All-Time: “She’s just a friend…I’m Single.”

“He told me he lived alone,” Meagan tells E!, “but I opened up [his] closet and saw a row of women’s shoes and said, ‘Either you are a cross-dresser or a woman is living here.’…”

“Mario said Karina just left her stuff there and was moving it out. He kept telling me that he and Karina were broken up.”

(And she bought that? That’s the oldest line in the book. Can you believe guys are still using that one? Ladies, follow your instincts. If it walks like a duck and quacks like a duck, it’s a duck….or in this case, a cheating dog.)

“He has a lot of great qualities but he was not the most faithful person in the world.”