Alex Pettyfer; Marloes Horst
Alexandra Wyman/Invision/AP; Gilbert Carrasquillo/Filmmagic
04/10/2014 at 08:00 PM EDT
Sorry, ladies! Alex Pettyfer is off the market – again.
The beautiful blonde who's snagged his heart this time is model Marloes Horst, PEOPLE confirms.
"They've been dating for a few weeks and are very happy together," a source tells PEOPLE.
The I Am Number Four
heartthrob, 24, was most famously linked to Dianna Agron
and Elvis Presley's granddaughter Riley Keough in the last few years.
"Happy birthday baby @a1pettyfer #birthdayboy," Horst captioned a cozy photo of her and her new man on Thursday. The two appeared to be celebrating his big day at Disneyland.
Horst was announced as Maybelline's newest face earlier this week, and has recently modeled for DKNY, Stella McCartney and Adidas.
Earlier this year, the actor revealed his sensitive side, telling Cosmopolitan U.K. his ideal date
is at the movies.
"I really like the traditional movie-and-dinner date," he said. "There are all those excited new feelings when you're in the cinema – you're looking at each other, but trying not to … I can think of about five dates when I couldn't even tell you what we were watching."
We have a feeling we'll be spotting these lovebirds cozying up at the movie theatre soon!