Dannielynn is growing up fast! Our own Mark Steines jumps into the play pit with the late Anna Nicole Smith's daughter and dad Larry Birkhead, who shares how his pride and joy is coming along -- and it seems she's quite a handful!"Dannielynn is bright, she's intelligent, she's met and exceeded all of her developmental milestones by all accounts from her teachers and, you know, medical personnel," says Larry. "Anybody that comes in contact with her talks about how bright and intelligent [she is] and how she leaves an impression.""It's hard enough for me to keep up with her social calendar," says Larry, who adds that as a single dad, he has a "non-existent romantic life." "[Dannielynn] keeps me on my toes, because she's very smart and she's asked things already about her mom. … She can walk by her picture and she'll give a kiss to her mom in a photo album, or at Christmas, we were sitting at home and 'The Naked Gun' came on with her mom in it, and I let her see an appropriate little clip of that, and she knew right away her mom was, you know, 'There's my mom. That's Anna Nicole.'"