The 41-year-old actress and the Good Charlotte rocker, 35, proved their relationship is getting serious after they flew to Orlando, Florida, to celebrate Independence Day with her loved ones.
A source told E! News: "They flew into Orlando and then drove to Tampa where they met up for a reunion. They also spent a few days at the beach on Anna Maria Island, where Cameron's family has a house. It was a great vacation and they had a blast spending time with Cameron's nieces and nephews."
The couple's five-day trip marks the first known time the blonde beauty has introduced her beau to her family, but it seems the hunk made a very good impression.
A source explained: "They were giving the kids piggyback rides and seemed like the best babysitters ever. The kids all couldn't wait to hang out with Cameron, and Benji was right there with her having fun."
However, the loved-up duo, who went public with their romance in May, also managed to sneak in some alone time during their busy family vacation.
The source said: "Cameron was hugging Benji from behind and kissing him whenever there was a free moment. They swam together and went to some of Cameron's favourite local restaurants.
"They seem like they are having fun getting to know each other and taking it to the next level."