Metamorphoses Book 9: Iolaus and the Sons of Callirhoe
As the women were drying their tears, Iolaus, once Hercules' charioteer, approached much younger than he once was. Hebe had transformed his age and taken the years removed from his life and added them to the years of the sons of Callirhoe so that they'd reach adolescence faster.
The other gods wanted to make their mortal favorites younger, too, but Jove insisted that such things were ruled by the Fates, not the gods. The gods gave in to Jove's argument, and none of the other mortals were restored to youth, including Minos whose great strength had declined with his age. His lands had been threatened by Miletus, but then the younger man had gone to Asia to found a new city. Cyanee, a nymph, gave birth to his twins, Byblis and Caunus in Asia.