The 27-year-old actress revealed as much to E! News at the Kiehl's Earth Day celebration, saying kids are "in the cards."
Reed and Somerhalder will celebrate their first wedding anniversary April 26. The pair are both passionate about animal rights and environmentalism, which the Sleepy Hollow star discussed at the event.
"Our household is very busy all the time," Reed said of their shared interest in activism. "No boring conversations at dinner."
"It's a wonderful thing that Kiehl's is doing," she said of the company's efforts to standardize labels. "Focusing on the importance of recycling and also making that accessible for young people."
Reed and Somerhalder were first linked in mid-2014 and got engaged after less than a year of dating. The 37-year-old actor said he "absolutely" wants to have kids with Reed in an interview with Entertainment Tonight in September.
"It's the most incredible thing to be happy and secure in something," he said of his marriage. "It's a pretty crazy time and place to bring a child into this turbulent and insane world, but I really can't wait to do it and really just love it."
Happy EarthDay everyone from us.We're in the middle of the North Atlantic Ocean in this yellow submarine shooting Season 2 of @yearsofliving on the @natgeo Channel with an amazing group of scientists, film makers, and the incredible tech professionals as well as crew of the Alucia. Thank you Mr. Ray Dalio for this extraordinary vessel to live on while we search for the Earth's past that will be the key to our future. This has always been my boyhood dream to be on a National Graphic science expedition-thank you for all that made this happen! Let's do something Great for our planet today so we get in the habit of doing it everyday. We must protect our wild habitats, keep our waters clean, educate our youth and stop stop dirty corporations that own dirty governments so all of us and our kids have a home. It's our earth, our home- let's make Earth Day EVERYDAY... Love, Ian and Nikki
Reed is known for playing Rosalie Hale in the Twilight movies and portrays Betsy Ross on Fox series Sleepy Hollow. Somerhalder plays Damon Salvatore on The CW series The Vampire Diaries, which airs Fridays at 8 p.m. ET.