The actress split from the Beverly Hills, 90210 star last year (15), but now she's expecting his baby - and the couple recently vacationed in Hawaii, where Fox and Green first fell in love.

And it seems the trip to the islands worked well for the pair - Fox appears to be back with her ex and she has plans to spend Father's Day with her man, and treat him to a big cake.

"He never gets to eat anything fun 'cos my house is so clean and I make him eat really clean too," she told Extra, "so maybe I'll get him, like, a German chocolate cake or something. He'll be so happy to see junk food."