But a spokesperson told Fox News that Isabella is still a member -- and Olivia Jade never was.
"The story regarding these two individuals is false," the rep said in a statement. "Bella Giannulli remains an active member of the Delta Tau chapter of Kappa Kappa Gamma. Olivia Jade did not complete the membership process."
Lori and her fashion designer husband Mossimo Giannulli were among the 50 people accused in a college admissions scam, in which mastermind Rick Singer helped the children of wealthy and affluent parents sneak in a "back door" to elite colleges, either by helping them cheat on entrance exams or by creating fake athletic profiles.
The couple were accused of paying $500,000 to pass their daughters off as athletic recruits to the USC crew team, even though neither competitively rowed before.
After they pled not guilty to conspiracy to commit mail fraud and honest services mail fraud, prosecutors added conspiracy to money launder to the list of charges, doubling their potential maximum prison sentences to 40 years.
The pair are next due in court on August 27; they hope to convince a judge that they thought they were making a donation to benefit the school.
When the news first broke, YouTuber Olivia Jade received the lion's share of online backlash for her perceived attitude that she didn't really care about college, and was only there for the social scene.
This week both sisters made their first social media posts in half a year, when they wished their mom a happy birthday on Instagram.