Children who grow up really fast
Billy and Tommy are the children of Wanda and Vision in the series WandaVision. At the beginning of the series, we find the couple in a 1950s sitcom atmosphere as they try to fit in in the small town of Westview. In the second episode, we learn that Wanda is pregnant and she finds herself giving birth in the following episode after being pregnant for only a few days. She gives birth to twins Billy and Tommy who grow up very quickly, which seems consistent with the fact that each episode takes place in a different time period. In episode six set on Halloween, the twins have had another growth spurt and, with the arrival of their supposedly dead Uncle Pietro, they begin to develop their own powers. One can go very fast, the other can read minds. At the end of the series, we understand that Wanda has taken control of this small town because of the grief caused by Vision’s death. Her grief also allowed her to create a new version of Vision as well as her children.