A realtor is denying claims that she tried to extort ex-boyfriend Stephen Belafonte. Nicole Contreras has a daughter with Belafonte, who's now going through a divorce with former Spice Girl Mel B. The singer claims he was abusive towards her. In audio obtained by TMZ, a woman claiming to be Contreras tells Belafonte she's going to "bury" him unless he gives her money. In an interview airing Tuesday, Contreras tells Inside Edition it's not her voice in the recording.