Washington, Mar 21: Hollywood actor Charlie Sheen, who recently became a father after his wife Brooke Mueller gave birth to twin sons, has revealed that he still can’t tell his twin sons apart.

Although the twins are not identical, Charlie still finds them pretty similar, as they are too small.

"I can''t tell (who''s who)! They''re not identical, but at this stage, they''re similar enough,” People magazine quoted him as saying.

Charlie has also revealed that he is a fan of short names, and thus has named his sons Bob and Max.

"Bob is the same frontward and backward. I''m a fan of a short and simple name. Max was literally Nick until about a minute before he came out,” he said.

Charlie and his wife are currently doing well along with the newborn twins.

"It''s pretty amazing. Not a whole lot of sleep, but what parent does at this stage? There''s adrenaline, excitement, fear,” Charlie said.

Meanwhile, Charlie’s daughters with ex-wife Denise Richards—Lola, 3, and Sam, 5—are eagerly waiting to meet their newborn half-brothers.

"(They''re) thrilled, but insisting that they''re named Bob and Duke. It''s not Max, it''s Duke,” Charlie said. (ANI)