Sheen slipped out around 10 p.m. PST, according to "Extra," which also cited a friend who said Sheen's abdominal pain was from a hernia that worsened when he was laughing too hard at the TV.
But a TMZ source said Sheen was in his theater room offering his expert critiques of porn for hours before a 911 call was made - reportedly by neighbor Dr. Paul Nassif, husband of "Real Housewives of Beverly Hills" star Adrienne Malouf-Nassif.
Porn actress Kacey Jordan gave TMZ a video interview alleging heavy drinking, a drug delivery, drug use and an epic porn collection. She said she eventually left the house because "I couldn't keep up" with the party.
Sheen has denied drugs were involved.
Sources close to the show told the Hollywood Reporter earlier this week that Warner Bros. Television execs are looking for an opportunity to send their $2-million-an-episode star to rehab.
"They are all afraid Charlie will end up dead," a talent rep told THR. "It is literally day by day."
Back in November, Sheen's manager denied the actor had any plans to die after an alleged hookers-and-blow binge, and said he'd busted in on the bad boy while Sheen was eating a turkey sandwich and asking for the next "Men" script.
Sheen is the highest-paid actor on television, and "Two and an Half Men" is consistently among the highest-rated shows. Sheen has two daughters with ex-wife Denise Richards, and twin boys with estranged wife Brooke Mueller.