After their gorgeous Malibu, CA, wedding [1] on April 26, Ian Somerhalder [2] and Nikki Reed [3] escaped to Tulum, Mexico, to celebrate their new relationship status. In less than a year together, the couple has already showed that they're head over heels for each other, posing for sweet snaps on the red carpet [4] and posting cute moments on Instagram. The PDA continued during their honeymoon as they embraced and kissed in the ocean and walked hand in hand across the sand. Nikki wore a revealing pair of bikini bottoms, but she covered up her top half in a cropped tank, while Ian went shirtless [5] and let his hair loose. It wasn't all about the beach (though they aren't the only stars who've shown oceanside PDA [6]) for Ian and Nikki, who also hopped on bikes to ride around town and visited nearby ruins with their cameras in hand. The couple eventually took their honeymoon to Rio de Janeiro, Brazil, where they showed off their wedding rings [7] on Friday.