from www.tmz.com – A comedian who played Cousin Danny on “King of Queens” has filed a lawsuit against a woman who he claims falsely accused him of sexual assault after a night of consensual oral sex.

Gary Valentine — Kevin James’ real-life older brother — is suing a former business associate, alleging she busted out a bottle of wine during a business meeting last year and “initiated intimate contact.”

According to the suit, filed today in L.A. County Superior Court, one thing led to another … and she eventually performed “mutually consensual oral sex on him.”

Valentine claims the woman was concerned her BOYFRIEND would find out about the hook-up — so she lied and told him she was sexually assaulted by Valentine. She then went to police with her story.

In the suit, Valentine says cops investigated — but the claims “proved to be groundless.”

Now, Valentine is suing the woman for $500,000 — claiming she damaged his reputation, caused severe emotional distress and cost him a ton of cash in legal fees.