Charlie Sheen Can't Tell Sons Apart Yet

They're not identical, but Charlie Sheen's new twins are still managing to fool their dad. "I can't tell [who's who]!" Sheen, 43, says from the set of Two and a Half Men just days after wife Brooke Mueller Sheen, 31, delivered twin boys.

"They're not identical, but at this stage, they're similar enough."

Their names, on the other hand, aren't giving him any trouble. Max and Bob "are very short and simple – easy to spell and remember," Sheen says. "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."

Back home in L.A., the new parents are doing well – but are a little tired. "It's pretty amazing. Not a whole lot of sleep, but what parent does at this stage?" says Sheen. "There's adrenaline, excitement, fear."

And the boys already have eager playmates in half-sisters Lola, 3, and Sam, 5, Sheen's daughters with ex Denise Richards. "[They're] thrilled," he says, "but insisting that they're named Bob and Duke. It's not Max, it's Duke."
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