In new photos posted by E! News, the Dancing with the Stars pro dancer and the actor were seen making out while standing in the water. Sharna, 35, wore a two-piece thong-style suit while the 47-year-old Beverly Hills 90210 alum wrapped his arms around her during their romantic getaway.
An insider revealed that it was Brian's idea to take his new lady to the Big Island of Hawaii because it's "one of his favorite places,"
The source also revealed that the new couple stayed at the posh Four Seasons Hotel, which is also where Brian married his ex-wife Megan Fox a decade ago.
"They spent a lot of time by the pool and beach, where they kissed, hugged and walked around holding hands," the source dished of the new couple. "They watched the sunset several times and also the sunrise."
The insider noted that the two stars explored tide pools and lava rock sites and spent a lot of time by the pool and on the beach, where they held hands and had what appeared to be "deep" conversations.
"Everything between them seemed very natural and peaceful," the insider said.
The new pics come nearly a week after the two were spotted boarding a flight out of LAX to Hawaii. While they have shared separate photos of their vacation to social media – many which have featured the same backgrounds – the PDA pics are the first actual proof that the two are a couple.
Last month, Sharna told Us Weekly she was no longer on the market, but she played coy on who her new guy was.
"It's very new," she said. "No one's calling us a relationship yet."
Still, she added that she wanted to hold the new romance close to her and "just enjoy that human for as much as I can."
The celebrity pair's separate photos certainly make it seem that they are on the same page. Both stars have shared on social media that they feel connected to the beauty of the beach and ocean, and both mentioned that they were focusing on love in the new year.
As for Brian's choice of destination with the Australian beauty, it appears he picked a winner.
"First vacation in a long time, best vacation in a lifetime," Sharna wrote in the caption to a beachside Instagram photo she recently shared, as seen here,