For the second time, Kellan Lutz said there is no romance brewing between him and Miley Cyrus.

"Are we dating? No," The Legend of Hercules star told Ryan Seacrest on his KISS FM radio show Monday, Jan. 6. "These rumors are hilarious."

The 28-year-old explained that while there may be pictures circulating of him and the Adore You singer, 21, hanging out recently, there is a reason as to why they have been spending time together.

"It just makes me laugh. ... I've been friends with Miley for like six years," the former Twilight star said. "She's a great girl. ... We are friends [and] we run in the same circle."

Lutz -- who also called Cyrus a "cool secure woman" -- told Seacrest he is not dating anyone. He said, "I'm happily single. ... I'm not [looking] right now. I'm enjoying life and traveling quite a bit. ... There's no real time to find the one."

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The actor also denied dating the former Disney star shortly after they arrived in Miami on the same private plane. Upon his return home to Los Angeles on Dec. 18, reporters asked him if he and Cyrus were in a relationship.

"You guys are stupid," Lutz said as he signed autographs for fans at LAX. "No, I'm happily single. I am very focused on work."

When asked if they are hooking up, Lutz replied, "You can write all the rumors you want, I really don't care."

Lutz and Cyrus were also photographed together in late December at the opening of Beacher's Madhouse in Las Vegas.