Thank goodness for family!

After Jessica Simpon’s ex, John Mayer, humiliated her by revealing intimate and graphic details about their sex life, the star turned to little sister Ashlee Simpson-Wentz for support, an insider tells OK! exclusively.

So what did Ashlee tell her big sis?

She tried to lift her spirits by having a sense of humor about the whole thing.

“She told Jess to look on the bright side,” a friend close to the sisters tells OK!. “At least he didn’t say Jess was bad in bed.”

OK! NEWS: JESSICA SIMPSON CRYPTICALLY RESPONDS TO JOHN MAYER’S SEX LIFE COMMENTS

Jess was so embarrassed by John’s tell-all to Playboy magazine — in which he called her “sexual napalm” and likened her to “crack cocaine” saying their sexual relationship was like an addictive drug  — that she even found it hard to go to her family for help.

“Jess was paranoid that [Ashlee’s husband] Pete Wentz was overhearing the conversation,” an insider reveals to OK!. “She hates the thought of her family thinking of her sexually at all!”

OK! NEWS: JOHN MAYER BREAKS DOWN ON STAGE AFTER CONTROVERSIAL INTERVIEW

It’s nice to know that Jess can count on some people, even if her ex-boyfriend would betray her to the national press!

FOR MORE ON JESS & JOHN, PICK UP THE NEW ISSUE OF OK! ON STANDS EVERYWHERE!

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