Larsa Pippen is enraged at her 'Real Housewives' costar, Julia Lemigova ... who had the nerve -- in Larsa's opinion -- to ask Marcus Jordan to take pics of her while they were at BravoCon.
Sources with direct knowledge tell TMZ ... Julia asked Marcus to snap a few photos during last month's big convention in Las Vegas, using his phone. We're told they were innocent, smiling shots.
Our sources say no one around thought Julia's request was odd .