Heather Locklear is telling friends that Bon Jovi guitarist Richie Sambora sabotaged their 11-year marriage by cheating on her.

Word is Locklear confronted him after finding some sizzling pictures that the alleged other woman E-mailed Sambora.

Star magazine claims Sambora’s former assistant, Stephanie Heaton, 39, sent Sambora one photo showing her wearing only fishnets and boots and another of her “wearing a baby-doll nightie in a provocative pose.”

“She’s devastated,” a friend of Locklear’s tells People magazine. “Richie’s saying nothing ever happened, that he never asked for the pictures.”

A Sambora ally adds that “it’s absolutely not true that they had an affair.”

Sambora’s defenders say Heather wasn’t exactly an innocent during their years together. Regardless of what they’re telling their friends, the divorce should move quickly – thanks to a prenup and their desire to protect their 8-year-old daughter, Ava.