i'm just sayint

So I'm in a different sorority but I've always noticed this...

So zta has the same 7-10 girls in EVERY picture they post on Instagram. Like why? I have four ztas who I'm friends with in one of my classes and they're all like drop dead gorgeous but I NEVER see them on ztas social media...what's up with that? It literally looks like zta has 10 girls in their chapter...