'REAL HOUSEWIVES OF ORANGE COUNTY' TOPLESS PIC TRIGGERS FBI PORN COMPLAINT

This topless pic of 'Real Housewives of Orange County' star Vicki Gunvalson has triggered an FBI complaint, and the agency is now looking into it ... TMZ has learned.

The pic was taken in Dublin, Ireland where cast members were on a retreat. Production sources say Tamra Judge took the pic and sent it to other cast members and producers with some snarky comments.

Somehow, the photo ended up on the social media account of a 15-year-old girl, who tweeted it out.

A woman named Rosalie Coleman saw the photo and filed a complaint with the FBI, saying "Tamara Judge ... sent a nude photograph of an acquaintance of hers (taken at a small gathering) to a FIFTEEN YEAR OLD girl & asked her to distribute it online in an effort to humiliate & harass one Vicki Gunvalson."
T/H : TMZ