Double the trouble! Before Tia and Tamera shot to stardom on Sister, Sister, the teenage twins did what every other teenage girl does: babysit. Thanks to their younger brother Tahj Mowry, who played Michelle’s best friend on Full House, the girls were introduced to the Olsen twins—everyone’s favorite ’90s child stars turned famous fashion designers—on set and asked to watch the adorable duo for half a day. In her 2022 memoir, You Should Sit Down for This, Tamera Mowry-Housley fondly recalled the experience. “It was so much fun. I forgot where the mom had to go, but I love the fact that she trusted my sister and I to take care of them. They had to have been, I want to say, 7 or 8. They were very young. So sweet, so kind. I remember all they wanted was matzo ball soup.”