Kellan Lutz and former flame Sharni Vinson are reportedly "back seeing each other".
The Twilight hunk has been involved with Australian actress Sharni Vinson since mid-2011, but they split in May this year.
Sources say the twosome have since made amends and are dating again.
"They are back seeing each other, they do have a great time," a source told Us Weekly. "They are trying to be fairly quiet about it, but they're not staying in a bunker or anything. Just a little more discrete."
The 28-year-old actor reportedly attended the Home and Away star's recent 30th birthday. Insiders added that Kellan is determined to make the relationship work, despite his shooting commitments for his title role in Hercules 3D.
"It's been a little difficult with him away filming, but he went to her birthday party recently and was such a great guy," the insider added. "They spent a lot of time together when in LA."
Last month Kellan hinted a reunion could be on the cards when he publicly sent birthday well wishes to Sharni.
"Huge Happy Birthday to the amazing @sharnivinson (Sydney Time ;)) and a Happy Birth Day to the wonderful @narellevinson for bringing such a beautiful soul into this world!" he tweeted.
Kellan met Sharni at a chemistry reading for Step Up 3D. Although Kellan never starred in the film, Sharni landed a role as a dancer in the hit flick.
The heartthrob has previously gushed about how well the pair get on. In November 2011 he told Ryan Seacrest that Sharni was his perfect match.
"She's a happy person, which really just clicks with me," he previously smiled.
"It's just great to have someone you can smile with all the time. It's really special."
Kellan recently attended the Chicago based annual music festival Lollapalooza, which ran August 2-4.
The Hercules star reportedly had plenty of female admirers but was not interested in meeting anyone new.
"[He] brushed off the female attention and seemed much more into hanging out with his guys," a source explained at the time.
Kellan previously dated 90210 actress AnnaLynne McCord.
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