Paris Hilton recently called her aunt, Kyle Richards, an "unkind" person for how she treated her mother.

Richards mocked and dismissed Kathy Hilton during the most recent episode of "The Real Housewives of Beverly Hills."

Kathy tried to tell the other housewives about actress Eva Longoria's Casa Del Sol tequila.

Richards showed her obvious disinterest by loudly scoffing and letting other women mock and dismiss Kathy.

Many fans called out Richards on Twitter for what she did and called it "ugly" behavior.

Paris quoted a tweet criticizing Richards and wrote, "So unkind," beside a pleading face emoji.

She made no other direct comments but liked several other tweets to make her feelings clear.

Kathy had earlier told Entertainment Tonight that she and Richards have a "great" relationship.

She also admitted that they'd had a tense relationship and several disagreements over the years.