Congrats go out to Kristen Bell and Dax Shepard! The couple welcomed their second child, a daughter named Delta Bell Shepard, they announced on Twitter Friday. Bell and Shepard's little bundle of joy joins big sister Lincoln, 1. The estrogen has now hit critical mass! Good luck, @daxshepard1. And welcome to the world DELTA BELL SHEPARD :) pic.twitter.com/72AFmnjmoC— Kristen Bell (@IMKristenBell) December 20, 2014 Delta Bell Shepard is here.