CHRISTINA AGUILERA is disgusted by the sex and drug allegations leveled against fel­low “Voice” coach CEELO GREEN – and she’s been telling pals she wants NOTH­ING to do with him!

CeeLo, 38, appeared in a Los Angeles court on Oct. 21, where he pleaded “not guilty” to a felony drug charge of supplying Ecstasy. The charge stems from a July 2012 incident in which a woman accused him of slipping the psychoac­tive drug into her drink. She also claimed CeeLo had sex with her in a hotel room without her consent.

The L.A. District Attor­ney’s office declined to charge CeeLo with raping the 33-year-old woman, noting she admitted hav­ing dated him for months before the incident. But reports say CeeLo is heard in a taped conversa­tion talking about the drug.

While “VOICE” executive producer Mark Burnett has said the “Crazy” singer will not be fired over the charges, the stunning accusations have left Christina furious about Cee­Lo’s continued association with the hit show.

“Christina’s very upset about the situation,” said a source. “Producers have told her to ignore the accusa­tions and get along with CeeLo for the sake of the show, but she finds the whole thing creepy and hates all the negative publicity it’s caused.

“She can’t look at him the same way she did before this whole thing came to light. It’s so sleazy and makes her shudder to think that he could be accused of something so vile.

“She’s telling friends she’s freaked out and having a hard time spending so much time with him.”

Set insiders say that Adam Levine and Blake Shelton also view CeeLo as a liability.

“Nobody really wants him around because his connection to a nasty drug and sex scandal is not what they want to portray to viewers and fans,” said the source.

CeeLo returned to “The Voice” for Season 5, which premiered on Sept. 23, after taking a break. His last season replacement, Usher, will be returning to the set for Season 6, NBC recently announced.

“The producers have always been supportive of CeeLo,” noted another source. “He’s never rocked the boat or given them problems, but the truth is this kind of notoriety is horrible for the show.

“They’re going to limp along with CeeLo on board this season, but it’s uncomfortable for everyone.”

This isn’t the first time CeeLo has been the target of drug and sex-relat­ed allegations. As The ENQUIRER reported in 2011, CeeLo’s ex-girl­friend Taylor Jackson claimed he took Ecstasy and also tried to convince her to have group sex with him and other women.

Now, CeeLo is due to appear in court again on Nov. 20. Although he faces four years in prison, sources believe he will likely plead to a lesser charge and be given probation in the drug case. While that’s good news for CeeLo, it apparently doesn’t make Christina feel any better.

“Producers have told her the show must go on,” said the source. “So Christina’s being a pro about it. She’ll go along no matter how uncomfort­able it makes her.”