8 Famous Women Who Couldn't Resist Ian Somerhalder's Sexy Smolder

Ian and Kate first met when they costarred in the 2000 Dawson's Creek spinoff Young Americans. They reunited a year later when they filmed The Rules of Attraction and that's when sparks flew. The two dated in the Summer of 2002, though their romance fizzled out rather quickly.

Ian briefly dated the heiress in 2004. While not much is known about their relationship or why they called it quits, the two were spotted out together on multiple occasions and their relationship only lasted a few months.

The duo first met on the set of Lost in 2004 and began dating after they both got killed off on the show in 2006. While they never officially confirmed their romance, Maggie mentioned Ian in an interview in August 2006, saying, "Ian's great, I adore him, although I'm only 22 — far too young to even think about having a serious relationship." The two eventually split in 2007, and in 2015, Maggie told New You magazine that they're "still very good friends."

The actor was linked to Miss Universe 1991 in 2008. Their romance was never officially confirmed, but the pair did show PDA whenever they attended various public events together.

Ian was rumored to have dated the Twilight actress after the two were caught making out at a concert in Vancouver in 2009, but their short fling didn't seem to go any further.

Ian and Nina met back in 2009 when they started filming The Vampire Diaries together and dated for three years before breaking up in May 2013. Despite their split, the two continued to work together on The Vampire Diaries and have remained friends.

In 2015, Nina opened up about their relationship, telling E! News, "I've said this before, that we didn't break up because anything bad happened or because there wasn't love or friendship. I love him and the friendship is still strong and I think he's great and I care about him. And that didn't change. Yes, we're professional and that's fine. We were friends long before we dated and we still are now."

Malese played vampire Anna Zhu in the first season of The Vampire Diaries, and the two sparked dating rumors after they were seen getting cozy with each other at BloodyCon in 2013. The duo even snapped a few cuddly photos at the event, though their relationship was never confirmed. Malese later went on to star in The CW's Star-Crossed.

Ian and Nikki first got together in 2014 and got engaged in January 2015. They tied the knot less than four months after the news broke in a gorgeous outdoor wedding and are currently expecting their first child together.

In addition to their adorable outings and sweet social media posts about each other, Ian has gone on record saying, "I am so blessed that I did, indeed, find this human being that can deal with me and is also the most caring, compassionate person I've ever known. That's why I wake up happy."