Kris Jenner has spoken out against her sister's adultery accusations.
The Keeping Up With The Kardashians star insists she is no longer in touch with her sister Karen Houghton.
Houghton accused Jenner of having an affair during her 22-year marriage to Bruce Jenner, after news the couple - who have daughters Kendall, 17, and Kylie, 16, together - had separated.
"Unfortunately, my sister has been dealing with demons for years," Jenner told RadarOnline.
"I am not in touch with her but I wish her the very best."
Sources claim the siblings haven't seen each other for nearly a year and Houghton has no real knowledge about Jenner's personal life.
"The reality is that Karen and Kris have not had a discussion about Kris' private life for 28 years," a source said.
"She has no knowledge of Kris' family life or her husband, except what she sees on the show.
"She has used this to create a fanciful tale of what is going on inside the family.
"Houghton has a tendency to be angry and jealous and perhaps this was her motivation to go on the media tour."Houghton suggested earlier this month that she had witnessed Khloe Kardashian's husband, Lamar Odom, in an incoherent state during a family dinner as a result of his alleged cocaine addiction.