Ian Somerhalder and Nikki Reed are officially married. The Vampire Diaries actor and his Twilight actress fiancée  tied the knot on Sunday in a romantic ceremony in the Santa Monica mountains. Nikki, 26 - who was previously married to singer-songwriter Paul McDonald - wore a stunning white lace long-sleeved custom gown by Claire Pettibone, while Ian, 36, donned a white suit and shirt. Scroll down for video . They do: Nikki Reed and Ian Somerhalder embrace in a passionate kiss as they tie the knot in romantic ceremony after nine-month whirlwind relationship on Sunday . True gent: The handsome chap carried his bride down a muddy slope to ensure her dress didn't get dirty . With her hair worn to one side and in flowing curls, she pinned her locks in place with an exquisite diamond slide as she carried an elegant floral bouquet. At one point Ian carried his bride down a muddy slope so that her dress didn't get dirty, before they shared a sweet kiss among their gathered friends and relatives. He was seen carefully picking up the train of her dress to protect it from the floor as the couple held hands - at one point, he dutifully tucked her hair behind her ear as they had their photos taken. Style sensations: Nikki looked elegant in white lace, while her man wore a cream suit with a cornflower blue tie for the occasion . Taking in the moment: One wedding photographer art directed the couple as he captured them at their most beautiful . A little assistance: The 26-year-old held onto her man as she navigated her way down a gravelly slope . Fairytale ending: Nikki kissed her man's face as he carried her in his arms . Something to remember: The photographer captured every single moment as Ian showed off his manly prowess . Clearly enamoured with his new wife, the handsome star crouched down in the grass to snap selfies on his mobile phone as they enjoyed a moment to themselves. He was caught gazing at her as he drank in their surroundings, savouring every moment of their special day together. The former Lost actor - who previously dated his co-star Nina Dobrev - confirmed the wedding had taken place on Twitter, where he gushed about the big day. Special time: The couple are said to be 'soulmates' and certainly seemed to be very much in love as they stepped out into the sunshine . Happiest day of her life: Nikki could barely keep the smile from her face as her man carefully tucked a piece of hair from her face . Saving the memory: The actress was pictured giggling away while a photographer captured the beautiful moment . Lingering: Ian and Nikki couldn't stop kissing as he took care not to step on the train of her dress . He wrote: 'Most beautiful morning ever... (sic).' Ian also revealed that he and Nikki  had been working out in preparation for the special occasion after posting a picture of them both lifting weights on Instagram last week. Meanwhile, Ian's Vampire Diaries co-star Kat Graham recently confessed that she believes the couple are true 'soul mates'. He wants to remember it all: Every so often, the 36-year-old would take a moment to gaze at the love of his life . X marks the spot: The couple were shown the way as they navigated their way across the space . Big day: Us Weekly reported Nikki affirmed the big news while attending the Catdance Festival at Sundance on Saturday, where she said of her husband-to-be: 'He's so beautiful inside and out!' Keeping close: The couple held hands as they enjoyed every second of their special day . She said previously: 'I haven't met two people that were more of soul mates than those guys. They are so absolutely amazing. Everyone loves them, and I really can't imagine him with anyone else.' After a six-month courtship, Nikki's engagement to Ian was confirmed in January - the same month her divorce from first husband Paul McDonald was finalised. Us Weekly reported Nikki affirmed the big news while attending the Catdance Festival at Sundance on Saturday, where she said of her husband-to-be: 'He's so beautiful inside and out!' Top names: Lea Michele was part of the guestlist, along with her boyfriend Matthew Paetz . Joining in the festivities: Lea looked incredible in a long grey dress which had a split running up the front of the number . Milling around: The couple were pictured talking to the rest of the guests while soaking up the sun . Intimate setting: Ian and Nikki had a stage set-up with a live band at their wedding reception . What a delight: Elegant table settings were laid out in the field where guests mingled with one another . Keeping refreshed: Attendees treated themselves to a bar which was placed next to a large umbrella . Nikki, who has been dating the star since July, added: 'He's quite possibly the most amazing man that's ever walked the planet, it's crazy. I'm so lucky, I love him.' Earlier in January, In Touch magazine claimed the hunk popped the question to the star during the holiday season. Ian had previously dated his Vampire Diaries co-star Nina Dobrev for three years before splitting in 2013. Beautiful moment: Ian stopped for a time to crouch down in the grass to capture his bride in the Santa Monica mountains . Not leaving anything to chance: He continued to take pictures of her on his mobile phone, despite the attendance of several photographers . Isn't she lovely? Ian surveyed his snaps as he continued to savour every moment of the couple's big day . Spring time beauty: Nikki carried a bouquet of flowers in her hands which set the scene perfectly . Taking care: The handsome actor carefully lifted up the back of her dress for her as she made her way across the terrain . Though it seems the two ended things on great terms as they continued to play lovers as Elena and Damon on The CW show. Filming for Nina's final episode proved friendly too as she posted Polaroids of herself with Ian online to mark the end of an era. Nikki's divorce from ex-husband Paul McDonald was finalised in January and according to TMZ, the American Idol star got to keep their Nashville home. That was quick! Ian Somerhalder and Nikki Reed  officially married on Sunday in California . Loved up: Nikki's engagement to Ian was confirmed in January . Reed got three other homes and three vehicles: a Range Rover, Toyota Tundra, and Toyota Rav4, as well as custody of their German Shepherd, Enzo. She had married Paul at a private ranch in Malibu back in October 2011 after just seven months of dating. The pair amicably ended their marriage in March 2014, with Reed filing for divorce two months later. Nikki and McDonald still collaborate musically and have an album together, called I'm Not Falling . 'Both Nikki and I are so proud of this album,' Paul told Yahoo! Music. 'I feel like through the process of writing and recording the album, we both grew significantly as songwriters and collaborators. It's been amazing watching Nikki grow as singer and discover a new confidence as an artist. 'Right now our passion for this project couldn't be stronger. We're planning on booking a tour soon.' Former flame: Ian was previously engaged to Nina Dobrev - pictured together in 2011 . All over: Nikki was previously married to singer-songwriter Paul McDonald - pictured in 2014 - but they finalised their divorce in January .
Started dating in July 2014, two months after her split from ex-husband .
Second wedding for Nikki following previous marriage to Paul McDonald .
Tied the knot in romantic ceremony in Santa Monica mountains .
Guests included Lea Michele and her boyfriend Matthew Paetz .