"I don't have anymore spells to cast, but why don't you give it a go?" asked Ethan, handing the book to his brother.
"Really? Thanks!" Gabe cried, taking the book and looking over the spells for a minute. "Shrink," he said, pointing at Ethan.
Ethan saw everything get larger as he felt himself getting smaller and smaller. Soon he was shorter than his brother, and still shrinking until he was only waist height to Gabe, affording him a great view of his brother's perfect abs. "Woah! That's sick!" Gabe cried, and placed a hand on his brother's head just to feel the size difference. "You kind of look like you're enjoying the view," he added, crunching his abs forward. “Or maybe you’re looking at who’s more of a man.”
Ethan realized he was almost eye level with his brother’s bulge and chuckled. “Well, I guess you could put it that way.”
“I’m not done yet either,” Gabriel said. “Grow,” he said aloud, not pointing at anyone and thus selecting himself as the target.
Before Ethan’s eyes his little brother grew taller, and bigger, stretching up and up in front of him. The growth stopped when the muscular ten year old stood a whopping seven feet tall with Ethan rendered just under knee-height to his brother. Gabe’s tight boxers had ridden down his thighs a little as he grew, before finally just tearing off and revealing his large bulge and tight ass. His muscles had grown proportionally so he was even more massive looking as a result. If it wasn’t for his youthful face and smooth, hairless skin he’d look like a giant of a man, but as it was he was still a giant of a boy. Now he really was the biggest ten year old ever. “So what do you think Ethan?” Gabe asked, flexing his huge biceps, “Do I look good?”