By Mirembe Martina

47-year-old Charlie Sheen is going to be a grand pa after his oldest daughter, Cassandra is expecting her first child.

Sheen’s ex-wife, Denise Richards made the announcement via Twitter. “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,” she wrote.

Cassandra’s mother is Charlie Sheen’s high school girlfriend, Paula Profit.

Charlie also has other children including those with Richards, Sam, 8, Lola, 7 ad 3-year-old twin sons, Bob and Max, with Brooke Mueller. “They’re our family and they’re Sam and Lola’s brothers and I can’t imagine growing up without my sister, so anytime she needs help, I’m there for the boys,” [Sam and Lola] are the best big sisters to [the boys] and they love them,” Richards said of taking care of the twins.