Brian was the only one in the right condition to do much of the heavier lifting in the farm, and that was stretching that idea quite a bit. He was skinny, nervous, a string-bean of a lad who'd only attained a bit of strength due to repeated exercises and duties on the farm. With his parents in poor condition - his father was old and his mother was ill - he knew he had to find some measure to make work on the farm easier. Not helping his condition was the fact the other students at school just LOVED teasing and bullying "that farm nerd". In particular, Jack Dallant was a repeated antagonist of his - Jack was everything Brian was not. Scion of a wealthy, rich family, tall, handsome, muscular and resplendent in his charisma and cruelty.
But now, thanks to that wise and powerful witch, Brian stood to finally have some help dealing with all the issues in his life. He looked at the powder as he poured it out - making a draught that could best be described as neon blue in coloration. It reminded him of the pre-workout drinks the jocks loved so much. He didn't know if this was really gonna help or if it'd just be some dumb energy drink. But he had to try. Not trying would be basically letting Jack win.
And damn if Brian was ever gonna let the bully who greeted him with "BUH BUH BUH BRIAN" every day win in anything if he could help it.
"Wow, you're really gonna drink that." And there was Scotty, the bratty younger brother. A gymnast, Scotty despite being multiple years younger always enjoyed it seemed flaunting his superior physical abilities. But now that was not gonna be the case any more.
"Yeah, even at the absolute minimum, it'll make work easier." And so Brian drank the drink down, almost choking several times from the vascillating bitter and sweet flavors that rocked across his tongue. He made damn sure to drink down every single drop from beginning to end, and he groaned when he was done. "...That...tasted foul."
Then he was made aware of a tingling sensation, rippling across his whole body.
"D-Dude..." Scotty said quietly, scooting backward inch by inch.
"W-What?" Did his voice sound different? Yeah it did sound kinda weird. He found himself increasingly looking down at Scotty, whereas before the gymnast had challenged his height significantly.
"You're...you're getting taller." Scotty didn't want to stick around and find out what was happening, so he bolted out of the room.
Brian chuckled to himself in that nice, deep new voice, a couple octaves lower than his usual, "...Damn..." He looked at himself and swore he was now about 6 foot 4 inches tall, a vast improvement over what he was before. Then he felt the tightness. Beginning in his chest and then flashing across his body, Brian almost collapsed on himself.
He was dimly aware of his shirt tearing to pieces as his body grew - his chest grew stronger, masculine, powerful pecs swelling into existence on him, his torso getting a slight barrel-chested look, half looking stocky half acquiring strong, deeply cut abs. His shoulders rounded out and swelled to great proportions, lats and back surging into proper existence, giving him a true and wide build suited for the fields so very well.
His arms were swelling, a great peak forming on his biceps as his triceps grew to match them, his forearms developing a brawny look as well. And of course his legs (quads and thighs) and glutes grew to a proper and large size, shredding his pants legs. His manhood within his pants and boxers attained a formidable length and girth, drawing shocked breaths and moans from Brian. The shape was slightly odd in a few places, visible through his tight as all get go boxers, but he figured it was normal.
He became aware of his body acquiring just as well a surprisingly thick coat of hair on the chest, forearms, and legs, impressively thick and manly as far as he was concerned.
Brian breathed and looked himself over. It looked like whatever force had taken upon him and changed him, it was gone for now. He was done so he thought, and he chuckled. First just a deep chuckle, building to a tremendous laugh. He felt amazing! He couldn't wait to show off this new body at school.
The rest of the day he enjoyed his responsibilities for once in a long while. Well, enjoyed them in as far as 12 year old Scotty finally looked like the younger brother for once in comparison to 18 year old Brian. He'd gotten dressed in his father's old clothes, and relished in his new physicality. Truly, he figured himself blessed - and while he went to sleep that night fitfully, he found himself sleeping well.
The next day he got up and got dressed for school, eager to show off.