In a loud enough voice Curtis allegedly told Concepcion: "Why are you here? Who invited you? You are not classy enough to be here!"
Anne allegedly went on to bash the Mirabella actor's car and asked him why is he cheating on her sister.
Concepcion is the boyfriend of Curtis' younger sister, TV5's Jasmine Curtis-Smith.
The Dyesebel star denied the issue on Tuesday night through an Instagram post that shows her with Vice Ganda and some of his guests at the party, including Sam Concepcion.
She captioned the post with: "Taken at Vice's birthday. Of course I spoke to Sam that night and as always, I told him to take care of my baby sister. Like any ate would do BUT to clarify I DID NOT say any of those words written in the article. Kahit tanungin nyo pa si Sam. Even he doesn't know where those words came from. Basta. Ang mahalaga Sam and I are ok. End of story, no issue here."
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