He was halfway down the stairs when he heard the front door slam shut. Zoe didn't even both to look up as she ascended the stairs in the direction of her room. She slammed in to Jon with a look of anger and glared, "C'mon Jon, move it or lose it!" she demanded.
"Sheesh, Zoe, what's gotten into..." he paused, feeling a peculiar pressure on his chest.
"Jon?" Zoe's expression shifted from one of irritation to confusion, "Jon? You OK?" she asked.
"Yeah, Zoe, I'm...I'm fine. I just gotta get outside." he tried to push passed her but she grabbed his arm.
"Jon? You sure you're OK?" concern mixed with her confusion. Zoe had never really been a bad sister.
That's when Jon felt them exhale. Pink gas sifted out of his boobs and through the bottom of his shirt. Zoe's eyes went wide and she made the mistake of gasping. The gas quickly flowed upward, into her mouth and throat, filling her with it.