Why Kellan Lutz Can’t Stop Taking His Clothes Off

Just how naked does the Twilight star get in a couple of his new movies?

We'll get to Kellan Lutz's shirtlessness in a sec, but first, let's talk birthdays.

As our own Hollywood Party Girl reported earlier this week, the Twilight hunkster helped girlfriend AnnaLynne McCord celebrate her 23rd birthday in Las Vegas this past weekend at a poolside bash at hot spot Wet Republic.

What did Mr. Lutz get his 90210 lady for her special day? Read on to find out...

"I got AnnaLynne an iPad," Lutz told us at the VH1 Do Something Awards in Hollywood. "She's been wanting one forever and she's been using mine. She's obsessed with it."

McCord was more coy when asked about the Apple gadget, only saying "someone very special" gave it to her. The actress did admit though that Kellan whoever got her the iPad earned "big points for that one."

And now onto Lutz's bod—we are more than happy to report that the Calvin Klein underwear model will be stripping down in at least two of his upcoming films. Lutz costars as Mandy Moore's husband in Love, Wedding, Marriage about a newlywed couple already having trouble in their marriage. In the Greek epic Immortals, he dons almost nothing but a gladiator skirt in his role as Poseidon, God of the Sea.

"Probably an even amount," Lutz admitted to us when we asked which flick will show him more naked. "Always got to be shirtless, right?"

No arguments here!