Lance Armstrong and girlfriend Anna Hansen are expecting a baby -- and it's already got a Twitter!

Last night, the Tour de France winner tweeted, "Getting ?'s today about someone I'm following, a certain @Cincoarmstrong. What to say? Yet another blessing in our lives. I cannot wait!"

@Cincoarmstrong's comment, "I got 2 arms, 2 legs, a nickname, and i'm 2 inches long. See y'all in October...Working on my avatar. It's slightly complicated."

The baby will be named Jack or Olivia and is the couple's second child.

Lance has three other kids with his ex-wife.

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