One source claims the 18-year-old was actually bullied for being there -- apparently not everyone thought she earned the right to walk the shows!
The insider spilled:
Rihanna treated her little brother Rajad to a shopping spree at The Grove on Saturday afternoon.
RJ ended up scoring some clothes from Nordstroms, a few things from the Apple store and some new video games at Game Stop.
What a nice big sis!
[Image via WENN.]