As much as he wanted to travel outside his room and see the world at a couple inches high, Max knew that with his sibling and parents home, he was asking for danger and trouble. He laid back in the afterglow of his particularly pleasant orgasm and just let time run out. He was so turned on he even got excited enough to go for another round with himself. Eventually, an hour passed and Max felt a sudden tingle that alerted him he might want to get out from under the bed.
He quickly scurried out even as he began stretching back to his normal size. His head swam slightly as he raised up in size and perspective, suddenly able to sit on the edge of his bed. He did so, dizzy, and felt the sudden "stop" of returning to full size. With a slight pant from the sensation, he sat there catching his breath for a moment and then quickly threw on his clothes.
Knowing fully well he was now armed with the power to reduce his size and the size of others at will, Max grinned and grabbed his backpack. He stuffed the carefully wrapped vials in and decided he should go hang out with his friends.