Golf Ball and Tennis Ball

Throughout the series, Golf Ball and Tennis Ball maintain a friendship. There is also a possible relationship. Golf Ball once says in Take the Plunge: Part 2 that she only likes Tennis Ball in a platonic way (Sibling type of way). Coiny also knew that TB and GB had a crush on each other. However in Lofty, they were fighting on whether the cloud looked like Golf Ball or Tennis ball, although this is, well, what siblings do, kind of. They still maintain their friendship in BFDIA. Tennis also follows Golf Ball's instructions.

Episodes suggesting a friendship

 * In the intro of BFDIA, Tennis Ball is sitting right next to Golf Ball.
 * In Insectophobe's Nightmare, Tennis Ball said to Rocky that he and Golf Ball are duo.