Nikki Reed and her husband, Paul McDonald, hit the beach in Hawaii over the weekend. Nikki wore a green bikini that showed off her leg tattoo while Paul went shirtless for his day on the sand. The couple has been on the islands since last week as they celebrate Paul's 28th birthday with family and friends. Nikki and Paul joined Nikki's brother for a hike, watched the sunset, and tweeted plenty of snaps of their tropical surroundings. Nikki also welcomed her Twilight costar Elizabeth Reaser to Twitter. They'll get started promoting the final installment in the franchise soon since Breaking Dawn Part 2 comes out in November. Nikki and Elizabeth's costars Kristen Stewart and Robert Pattinson will step out for press as well, though it remains to be seen if they'll be on the red carpet together given the recent drama in their personal relationship.