We may have been a bit obsessed with Ian Somerhalder’s relationship with co-star Nina Dobrev before (and even after) the couple officially split back in May 2013 — and it got us thinking about all of the hotties that Ian has dated throughout the years. Which Lost lady did the studly Vampire Diaries star date?

Wetpaint Entertainment asked Viggle LIVE! users if they knew during last night’s episode of TVD Season 5, Episode 15 (“Gone Girl”) — and 76 percent correctly guessed that Ian and Maggie Grace (Shannon Rutherford on Lost) dated from 2006 to 2007.

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The other 24 percent of the vote was split (almost evenly) between Evangeline Lilly and Emilie de Ravin, who garnered 13 and 11 percent respectively. We would totally support either of these relationships, but we also think Ian and Maggie make a cute couple.

We’re glad that Ian was able to contain his sexy self and only date one of his co-stars from Lost. Ian and Maggie never really confirmed their relationship, but they really seemed cozy quite often just about a year after their characters got killed off the hit ABC show. We’re going to just pretend that we don’t know they played step-siblings on the show…

Get into the fun with Viggle and impress us with your TV and movie knowledge! It’s easy — and you even get to earn rewards for watching your favorite shows. All you have to do is download the Viggle app, get watching, and join in on the fun!

Carson Blackwelder is an Assistant Editor at Wetpaint Entertainment. Follow him on Twitter and Google+!