Despite what Charlie Sheen tweeted earlier this afternoon, X17online can report exclusively that the actor and ex-wife Brooke Mueller have NOT reached a custody agreement.

A source tells X17online that the mother of two "has not agreed to Charlie's custody deal," and though the former couple met with their respective attorneys today in hopes of hammering out a solution, neither side has come to an agreement ... yet. "Brooke and Charlie would both love to handle this out of court," the source added. "Going in front of a judge is not something either of them is looking forward to, so Brooke was willing to try to strike a deal today, but the offer just wasn't what she wanted. As far as I know, they're still working on it."

Sheen and Mueller were set to appear in court on Monday, March 7 for a custody hearing, and it seems like they are doing everything they can to avoid leaving the decision to the court. Just a few hours ago, the Two and a Half Men star tweeted, "not sure what all the legal noise is about... just verbally reached a deal with B. no court mon. yay......yet the opposition felt it necessary to still harass me with old gibberish.... odd? perhaps. transparent? you betcha'!"

Sheen and Mueller will return to court on March 22 to determine whether to extend the restraining order that requires the actor to stay 100 yards away from his ex-wife. Mueller filed the restraining order and asked for full custody of their 23-month-old twins Max and Bob earlier this week, and things became even more complicated when authorities removed the boys from Sheen's Sherman Oaks home on Tuesday night.