Last time on Mommy's Girl, Riley Reid and sister Goldie came up with the perfect plot to have their new stepmother Mercedes Carrera at their beck and call. Knowing their new mother has something she's hiding, sisters Riley and Goldie did some research online, discovering Mercedes dark past of a lesbian incident with her previous stepdaughters. Goldie lures her new mother into her room this time, seducing the gullible milf to repeat the mistakes she swore she would never make again.