Sex Tapes, Lies & More! 'Vanderpump Rules' Dirtiest Secrets EXPOSED

From plastic surgery to cheating rumors, the Vanderpump Rules cast always packs the drama! Click through these slides to find out their biggest scandals and secrets yet.

The show's first season chronicled Stassi Schroeder and Jax Taylor's on-again-off-again relationship, with Taylor, 37, admitting to cheating on Schroeder, 27, in the last episode. Schroeder later revealed on the "Secrets Revealed" episode that she lied to Andy Cohen at the reunion about when she began her short-lived relationship with Frank Herlihy so that Taylor would tell her the truth.

Taylor also cheated on Schroeder with cast-member Kristen Doute, who in turn cheated on Tom Sandoval. Sandoval notoriously kissed Ariana Madix behind Doute's back, but have since been dating.

Madix and Sandoval's relationship came into question when Doute flew in a girl he reportedly hooked up with in Miami to Los Angeles — leading Doute to get fired from the restaurant.

Later on, Taylor didn't learn from his womanizing ways and proceeded to hit on Lala Kent while his current girlfriend, Brittany Cartwright, was driving cross-country to move in with him.

Scheana Shay knows a thing or two about cheating, too! Before marring Mike Shay in the third season, she carried on a high-profile affair with her boss Lisa Vanderpump's frenemy Brandi Glanville's then-husband Eddie Cibrian. He was also dating his now-wife LeAnn Rimes at the time.

Shay, who also goes by Scheana Marie, also got into an epic feud with Schroeder over a sex tape the Straight Up With Stassi host starred in! It was revealed in the season four reunion that Schroeder's ex attempted to sell a video of her getting intimate with herself, and showed it to Marie. Vanderpump later paid the ex $900 to make the tape disappear.

Doute, 33, also disappeared from Schroeder's life for a short time! However, the two reconciled when they were both left friendless — and James Kennedy, 24, left Doute single as well.  Kennedy notoriously spit on Doute's door during one of their epic breakups, prompting his on-going feud with Taylor to explode again.

More recently, the 24-year-old, who has chronicled his drinking problem on the show, was reportedly kicked off a flight for being too drunk.

Katie Maloney managed to stay out of the SUR drama — until her fiancée Tom Schwartz copped to cheating on her with one of Shay's friends in Vegas. Katie Maloney managed to stay out of the SUR drama — until her fiancée Tom Schwartz copped to cheating on her with one of Shay's friends in Vegas.

Now, Maloney, 29, is feuding with Kent, 25, and revealed she won't be invited to her upcoming wedding!