Isaac had been able to smell the sickness on Stiles from the moment it hit him, but Stiles ignored it, so Isaac didn't badger him over it; even though he wanted to tell him to go home and rest when he'd shown up at lacrosse practice.

It had gotten worse as the day progressed and Isaac had decided that as soon as he'd shown his face to Derek, he'd head over to the Stilinski house to check up on his -well, he wasn't 100% sure if they were going with a term as committed as 'boyfriend'- but he wanted to make sure that Stiles was okay.

He pushed the window up and climbed in, overwhelmed by the scent of sick in the air and his eyes immediately zeroed in on the human and he was quick in his approach, a hand pressed against the side of his face while the other takes the book and drops it to the side.

"Stiles! What the hell were you thinking letting it get this bad?"