Susie Vortex is Cindy's aunt award-winning athlete and a Olympic buff chick model. She actually bears a striking resemblance to Cindy's mother Sasha.
Maximum Hugh (S01E13)Edit
She once impersonated Cindy's mother at a field day so Cindy could cheat to win, but Jimmy figured out the truth when he noticed "Sasha" having a slightly different height, different eye color and a zipper on the back of her neck.
Maternotron Knows Best (S02E09)Edit
She makes a cameo appearance her in the exercise area of the spa that Judy Neutron goes to.