On Sunday, Carlin shared another snap of himself and Emily soaking up the sun on South Sydney's Cronulla Beach.
"We saw the weather forecast for the next week, so we and the whole east coast of NSW acted promptly," Carlin joked in the caption.
Fans praised Carlin for the cute photo - the first official snap of the couple.
"Beautiful couple," posted one.
"What an absolute babe, I’m talking about your gf here... she is smoking hot!" joked another.
Others, however, felt for Carlin's Bachelorette ex Angie Kent and weren't as approving of his new relationship.
"S*** -you moved on bloody quick," one person commented.
"I told my moms, Timm was the right choice," said another, referring to runner-up Timm Hanly.
Queensland native Angie, meanwhile, didn't spend her Christmas pining after Carlin but instead spent the silly season with her family at home.
"How lucky am I!!!" she captioned a picture shared to her Instagram Stories.
"I love it when we're together. Even if there's always one (or four) that goes too far, unconditional love right here! Another Christmas and Boxing Day down. Now, time to nap until NYE ha!"