"Legolas?" Aragorn prodded softly. Legolas remained quite, silently watching the ranger. "Now or never." he thought
"I want to tell you, but I'm not sure how you'll react."
Aragorn smiled. "What do you want to tell me? If it makes you feel better, I promise I won't react badly, or at least try not to."
~I think I'd rather show you.~ Legolas whispered in Elvish. Legolas shifted so that he was kneeling in front of Aragorn, and swallowing down his fear, leaned forward to kiss the ranger.
Aragorn's lips were warm and soft, tasting faintly of mint. Aragorn froze, his senses reeling, too shocked to respond. After a moment, Legolas pulled back, and seeing the look on Aragorn's face, which was of pure shock, stood up rather quickly.
~I… I'm sorry Estel, I shouldn't of done that, forgive me.~ Legolas stammered out in Elvish, and darted away into the woods.
Aragorn stood up, surprised that Legolas had used his Elvish name. "Legolas, wait!" he called after the retreating elf, beginning to follow, before realizing that he was still on watch, and couldn't leave the others. "Damnit." he growled.
"You fool!" Legolas yelled at himself, as he ran. "What were you thinking? You had to go and mess things up didn't you? You had to go and kiss him didn't you? You are an idiot, and now your relationship is hopelessly screwed up, because you had to go and do something stupid!" he railed at himself, as he came to a stop. The elf silently breathed in lungfulls of air and after catching his breath and getting his bearings, climbed the nearest tree to think.
Aragorn stood in the clearing as his brain put together what had happened. Legolas kissed him. And by the look and feel of that kiss, he had feelings for him. Aragorn sighed, he had to fix this, and soon. The ranger went over his options, of which there were three. One, wait until Legolas came back. He really didn't like that at all, too much time could pass before the elf came back. Two, go after him. He liked that one, but he'd be leaving the others unguarded, and that could end up turning out really bad. So that left option number three. Waking one of the others early for their watch, and then running off after Legolas.
He debated who to wake up, deciding against any of the hobbits, they really needed their sleep, so did Gandalf for that matter. So that left Boromir or Gimli. He woke up Boromir, explained that he needed to go after Legolas, and asked him to watch the others. Boromir nodded sleepily, while getting up, and Aragorn said his thanks and left after Legolas.