The craziness on Real Housewives of Beverly Hills is just getting started and based on the sneak peeks, the drama on the reunion is the most intense ever.

'Real Housewives of Beverly Hills' Star Spills Secrets About Season 5 Reunion Special

In a new sneak peek video, Lisa Vanderpump is slamming Brandi Glanville for sleeping with a younger man during their trip to Amsterdam.

Vanderpump reveals that Glanville's fling happens to be friends with her son Max and she's a little disturbed that the news may get back to her son.

Andy Cohen Spills Juicy Secrets On 'Real Housewives of Beverly Hills'

During the reunion, Glanville exclaims that she and Andre had sex twice during their trip and apparently they're still communicating with one another.

The drama starts when Glanville says that Vanderpump is jealous because she wishes she could have slept with Andre. The ladies then jump on Glanville for making such inappropriate comments.

Glanville says that Vanderpump has been very mean to her since they started shooting the reunion and the ladies then get into a heated argument.

The drama between the two ladies isn't the only craziness unfolding during the reunion and viewers will definitely have a front row seat to more drama.

Celeb Dirty Laundry reported that while Glanville may have lost her composure, it's nothing compared to how Lisa Rinna reacted during the 3-part season reunion.

"Lisa Rinna's outbursts and physicality of that glass explosion, reportedly pale by comparison to what viewers will soon see. Cast and crew were shocked when Rinna went berserk and lost her composure not once, but three times or even more. This time the violence was more terrifying."

Part 1 of the 3 part Real Housewives of Beverly Hills season 5 reunion airs on Tuesday, March 31 at 9 p.m. on Bravo. Viewers can watch an extended clip from the reunion special in the video below.