Life isn't really getting better for Olivia Jade and Bella Giannulli as their parents Lori Loughlin and Mossimo Giannulli are about to head back to court in the Varsity Blues college admissions scandal ... 'cause now, the girls have been kicked out of their sorority at USC, to add insult to injury!

Of course Olivia and Bella had already stopped attending the prestigious private school following the FBI investigation that busted their parents and many others for paying a college admissions counselor to help them get into USC. Here's what reportedly happened at the KKG house: "Olivia and Bella were both in Kappa Kappa Gamma and the sorority has since kicked them out and is trying to distance themselves from the situation as much as possible,” a source tells Us Weekly.

Meanwhile, Olivia and Bella have made a quiet return to Instagram -- posting birthday messages to their mom the other day. Lori turned 55 over the weekend and celebrated with a small family gathering at their Beverly Hills home. Lori and Mossimo are due back in court Aug. 27 where they are expected to waive their rights to separate representation, choosing to share the same lawyer in their defense, presenting a united front to the jury. Felicity Huffman has done the opposite -- her husband William H. Macy wasn't indicted in the scandal so she's on her own. If found guilty, she'll take the fall for having paid William "Rick" Singer, the college admissions consultant, to fudge the couple's daughter's SAT scores for in exchange for a $15,000 payment to singer's fake non-profit.

Loughlin and Giannulli are currently in LA, attending Good Shepherd Catholic Church every Sunday. Lori was seen out shopping over the weekend and for the most part, they're going about their normal daily lives ... with the threat of a jail term hanging over them every single day. Gotta be stressful!