The brow plates over the turian's eyes rise a little as Shepard embraces him. He wasn't startled persay, but he certainly wasn't expecting the change of heart like that. Then again, she had taken in quite a bit of alcohol. Emotions tended to do what they want at this point.

But before he begins to think on it too much, Garrus gently wraps his arms around her in return. He still had no damn clue what was going to happen with the whole.. kissing thing. All he knew was that Shepard needed a little comfort right now, and regardless of what happened, he cared about her.

"I'm here now."

He leans his neck forward a bit to rest his head beside hers.