Nikki Reed posts heartfelt wish for 'best partner' Ian Somerhalder

On his 39th birthday, Nikki Reed has penned a heartwarming poem for 'best partner and father in the world' Ian Somerhalder.

Reed took to Instagram to share adorable pictures of the two and wrote alongside, "To the only person that loves broccoli and a homemade face mask more than I do. my poet, my dreamer, my favorite guy in the world."

"A day celebrating you and only you, nothing makes me happier. Another year, an incredible year, one we will surely never forget."

"It's hearing your sweet voice singing silly songs with me in the morning. It's knowing I can always count on you to order five trays of french fries so I can eat four."

"It's driving across the country listening to you tell stories from another life. It's stopping so you can pee every twenty two minutes and waiting for you to say you aren't sure if you'll make it in time.every time," she continued.

"It's realizing we have not played any music because we always have too much to talk about. It's watching you make the most outrageous faces trying to get a belly laugh out of our tiny one. Here's to many more walks listening to you describe every plant, every flower and every tree we pass."

The 'Twilight' actress continued, "To the warm nights spent outside watching you dream out loud under the stars. Thank you for always reminding me that only a handful of things truly matter; flossing, laughing, and not counting how many bottles of wine we went through."

In the loving birthday tribute, the 29-year-old also revealed the secret to her 'long happy marriage' with 'The Vampire Diaries' star.

"I get it now. The secret to our long happy marriage is this: I need to be in bed by 930, and you need to start manifesting all your dreams at 10. Done. As long as we always find each other for breakfast :)" she wrote.

"Happy birthday to the best partner and father in the world, 39 looks damn good on you. We love you. Ps if a photo could sum up an entire relationship.would the last one in this group be ours? Cheers to mastering the art of synchronized lip licking. We've officially made it!"

Reed and Somerhalder tied the knot in April 2015. They welcomed their first child, a baby girl named Bodhi Soleil Reed Somerhalder, in August.