Vampire Slayer, meet the Diaper Genie.
"The family is over the moon," Gellar's rep told People. (So are we that they picked such a pretty name.)
Well, they may be first-time parents, but Gellar knows all about being on dawn patrol and Prinze, too, is familiar with long hours combined with no sleep—he'll be one of the agents chasing bad guys into the wee hours on the upcoming season of 24.
Check out Sarah's fellow hot Hollywood moms in our photo gallery.