The Vampire Diaries star says he feels sexiest "first thing in the morning, when I'm most relaxed." But sorry, ladies, Somerhalder, who's dating costar Nina Dobrev, already has company. "I have three animals in the bed, and there's fur everywhere in the sheets," he tells PEOPLE. "It would be a little weird for me to say that I feel sexy with all my kitties. I would be 'that guy.'"