[expletive] star Melanie Rios was partying with Charlie Sheen before he was hospitalized, Breaking Celebrity News has learned exclusively.  We also reported that Kacey Jordan partied with the star before he fell ill.

Rios, 19, is telling friends she was with the Two and a Half men star at the time a 911 call was placed Thursday morning, at 6:35.

Breaking Celebrity News has learned the brunette is close to securing a manager to represent her given the firestorm of media interest, after the actor was rushed to Cedars-Sinai Medical Center in Los Angeles suffering from "severe abdominal pains."