Erin Clack / People: The Challenge Stars Jenna Compono and Zach Nichols Welcome Their 4th Baby, a Girl - The reality TV couple are already parents to Carmella Jean, 17 months, Liliana Marie, 2, and Anthony Joseph, 3 - The Challenge stars Jenna Compono and Zach Nichols welcomed their fourth baby, a girl, on Sunday, Aug. 10