"Real Housewives of Beverly Hills" Season 5 Episode 21 Spoilers - The epic catfights in "RHOBH" Season 5 three-part reunion special are indeed far from over. As the upcoming episode delves deeper into the conflicts involving Kim Richards and Lisa Rinna, the second part of the reunion will be more than just a screaming match.

Since "The Real Housewives of Beverly Hills" Season 5 Reunion is filled with tons of confessions, shocking revelations, crazy outbursts and nasty arguments, it was turned into a three-part special. While most of part one focused on Yolanda Foster's Lyme disease ordeal and Brandi Glanville's controversial schemes, part two or episode 21 will concentrate on Lisa Rinna and Kim Richards' dispute.

Before the intense catfights in "Real Housewives of Beverly Hills" Season 5 Episode 21, Celebrity Dirty Laundry recalled that the Rinna-Richards faceoff started in Amsterdam after Kim threatened Lisa to expose her husband's mysterious secret. The encounter resulted to the controversial glass-smashing incident when Lisa Rinna allegedly lost control and went into a violent rage after Kim Richards exposed her husband Harry Hamlin's infidelity scandal.

And as the Housewives continue to reminisce the experiences while voicing out their grievances, the Richards siblings hit a major breaking point. Several "RHOBH" Season 5 Reunion spoilers said that Kim's alcohol issues and her friendship with Brandi Glanville were the main sources of the intensifying feud that ripped the sisters apart.

It's been truly heartbreaking to see Kim and Kyle's tumultuous relationship fallout this season. And as things get emotional between them during the reunion, Bustle reported there will be a dramatic siblings' breakdown.

Meanwhile, "RHOBH" Season 5 Episode 21 also suggests some unexpected surprises. As per a Bravo TV blog, the reunion special part two will be filled with the usual crying and accusations but one Housewife literally showed off her impressive dance moves. Any guesses on who among the Housewives did an epic dance off? As this article is a spoiler, we are revealing that it's Lisa Rinna.

"The Beverly Hills Housewives continue reliving good times and airing their grievances," the "RHOBH" Season 5 Episode 21 synopsis reads, as Bravo TV released. "Eileen discusses how Brandi went from a high-school fan to a wine-tossing foe."

"Kim delves into her own issues with the soap stars and goes after Lisa Rinna as they debate the glass-breaking incident in Amsterdam and Kim's veiled threats to reveal something about Lisa's husband Harry," it continues. "Leading into a breakdown between sisters, Kim and Kyle vacillate between anger and tears."

In the meantime, tune in to Bravo at 8 p.m. on Tuesday, April 7 as "The Real housewives of Beverly Hills" Season 5 Episode 21 premieres.