Isaac laughed, ducking his head as he glanced at Stiles. "Is that look about hitting on you or your youthful looks," he asked, amused and trying to focus on anything but the nightmares that had driven him to Stiles' house that night.

"You didn't ask me if you were attractive to girls though," he pointed out, taking a sip as both hands cradled the mug. "So then you think I'm gay and can talk for gay guys?"

He's enjoying himself, using that twisted humour to try and amuse himself and keep his thoughts here and now.