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While Twilight star, Robert Pattinson, has declined to start his own Twitter page, he did recently post his first Tweet on his co-star’s Twitter page.

It was on the account of Peter Facinelli–who plays Rob’s vampire father Dr. Carlisle Cullen–that Rob writes, “Thanks a million. Here’s Rob… Hi, it’s Rob… My first and last tweet. My dad made me do it.”

Shortly after Rob’s posting, Peter tweeted, “At least you know he doesn’t have a Twiiter account. Lol. Down with the posers.”

Gallery Info: Peter Facinelli leaves his home in Toluca Lake and at the LAX airport.