AceShowbiz - Kim Kardashian gets beyond worried about her children spending time with their father Kanye West and his wife Bianca Censori. "The Kardashians" star is allegedly concerned about what the kids are "exposed to" while hanging out with the couple.

"Kim is constantly getting more and more alarmed about the stories she sees coming out about Kanye and Bianca," a source close to the reality TV star tells The Sun. "Every week it's something different and she fears it's no longer a healthy environment for the younger kids to be in."

The insider adds, "It's not like she's even in contact with Kanye directly - they either speak through nannies, [her mom] Kris or lawyers - but North sends her pictures and videos when she's with her dad."

It's also said that the SKIMS founder "wants to see with her own eyes what's going on - she's saying she wants a sit-down meeting urgently with both of them to discuss co-parenting and put some new ground rules in place."

The new report regarding Kim's concern comes after it was reported that Ye was addicted to nitrous gas. The rapper's former chief of staff Milo Yiannopoulos alleged in court documents that the musician's dentist Thomas P. Connelly charged Ye over $50,000 per month for supplying "enormous quantities" of the gas.

Yeezy staff members allegedly expressed concerns about the "Gold Digger" rapper's growing dependence on the gas. In the affidavit, Yiannopoulus claimed that prolonged nitrous oxide use can produce symptoms similar to Ye's bipolar diagnosis, including mood swings, paranoia and impaired communication.

While Connelly denied the accusations, a newly-surfaced text saw Ye asking Connelly to deliver the gas to him. The dentist could also be seen saying that he wanted nitrous to be legalized. He wrote, "This needs to be a long term goal. Get recreational nitrous legalized."