Jimmy Neutron and Cindy Vortex are distaff counterparts, across the street neighbors, best friends and love interests in the Jimmy Neutron franchise. In the majority of the franchise, Jimmy and Cindy share a huge rivalry in academics and physical abilities. Cindy was the smartest in her class before moving to Retroville, where she met Jimmy and the others. She lives across from Jimmy, whose intelligence put her at second place. Both being too prideful to acknowledge the other's individual skills and knowledge, these two young geniuses both strive to outdo the other.
Cindy and Jimmy compete over pretty much everything, including their dogs Jimmy's is a robot, Cindy's a canine. Though they're pretty much the only ones in Retroville who haven't figured it out Movie Cindy vs. TV Cindy.