Jim and Tim Possible are secondary heroes in the television series Kim Possible. The younger twin brothers of Kim Possible, whom she affectionately calls the "Tweebs" (a portmanteau of "twin" and "dweebs"). They are distinguished by the color of the shirts they wear. In spite of their age, the twins are geniuses and child prodigies capable of outwittting every problem they encounter. They are usually known for causing trouble to Kim and her friends, though they remain by her side when evil forces threaten the universe in the second Disney Heroes vs. Villains.