Actor Charlie Sheen confirmed that his oldest daughter, Cassandra Estevez, is pregnant with her first child. The announcement was made during his guest appearance on "The Late Show with David Letterman" on Monday.

"You are going to be, in the next several months? Fill in the blanks. You are going to be a..." curious host David Letterman asked. "Grandfather," the former "Two and A Half Men" star responded with a smile. Cassandra Estevez married her childhood sweetheart Casey Huffman on September 2010. A lavish ceremony was held in Santa Barbara, California.

The 47-year-old actor is really excited about the baby but he is not thrilled to be called Grandpa. "It's fabulous but not exactly a title I'm ready to adopt," Sheen stated.

"Me as a grandfather, Dave, I don't know. It's like the world's going to crack in half," the actor added jokingly.

Now with a baby on the way, Charlie Sheen began to think about recovering from his infamous lifestyle. "I don't really believe in that lifestyle anymore," Sheen stated.

However, the actor still sounds unprepared to live a life free from drugs and alcohol.

"It doesn't seem fair. You guys don't want me clean and sober, that's boring!" Sheen exclaimed.

Charlie Sheen's ex-wife, Denise Richards, did not fail to express her excitement upon hearing Cassandra Estevez's pregnancy news.

"I guess some of you have heard... @CharlieSheen is going to be a Grampa... yes GRAMPA! his beautiful daughter Cassandra is gonna be a mama," the actress posted on her Twitter account @DENISE_RICHARDS.

RELATED STORIES