Josey's dad, and Rivera's ex, Ryan Dorsey shared the videos to his Instagram Story on Thursday, proudly showing off his little boy's enthusiastic footwork.
The first video shows Josey dancing to "Smooth Criminal" in their living room, and Dorsey wrote over the video, "Last night."
The second cute clip shows Josey rocking out to "They Don't Care About Us," to which Dorsey added a dancing skeleton gif.
In the second video, Josey is dancing so hard that he actually trips backwards and ends up falling into a plastic box, but makes a spectacularly theatrical recovery to continue his living room performance.
"Then he asked me if TiTi can live with us. 'I want TiTi to live with us, forever.' Because she's now the closest thing that he has to a mom," he explained. "Because you're going to need all the help you can get as a single parent, trying to build your career and navigate this disaster with your child. You deal with it every hour of every day for 80-plus days now."
"They simply share the same goal -- to give Josey the best childhood possible and to raise him the best they can without Naya," the source said of the living arrangement. "They've also found comfort in one another because they understand what each other is dealing with and they know how exhausting it can be to be grieving in the public eye while trying to keep it together for Josey."