The lightning had blasted Rob and Neil to opposite sides of the bathroom. Thanks to Rob's new muscular size, he got up slowly but was okay. Neil on the other had had been blasted into a wall and was laying on the floor, unconscious.
As Rob got up and started putting his shirt back on, he didn't notice anything. It was all he could do to get the shirt back on. He shoulders were so wide that the shirt was riding up exposing his lower abs. Not only could he see his pecs through the tight shirt, he could see every individual ab muscle and every crevasse between them. One more bounce of his new pecs, and the shirt would be destroyed. The sleeves on his shirt were so high it looked more like a tank top. The sleeves just weren't big enough for his new arms. He was starting to leave the bathroom when he noticed something weird with his crotch. Suddenly he realized, the underwear were gone and he was going commando, his 11 inch python snaking down the side of his leg. That blast of lightning had taken the underwear. All of his muscles were still there, he noticed lifting up his shirt to take in one last look at his beautiful 8-pack. But he figured it was only a matter of time before his body returned to the way it was. Rob needed to find the underwear, and fast.
Rob began to step over Neil's lanky, disheveled body when he noticed something odd. Neil's shirt was messed up, exposing his waist and flat, pale stomach. The waistband of Neil's underwear were just visible above his tight black jeans. "Calvin Klein," they said. They were the same Calvin Kleins Rob had been wearing. It turns out that Neil wished he did have pecs like Rob's, but instead of transferring just the pecs, the lightning transferred the underwear so that Neil could take them himself.
Neil began to move, waking up slowly. Rob didn't have much time. There was no way Neil knew about the power the underwear gave him, but it wouldn't take him long for him to figure it out. Rob still had his huge biceps so he knew it wouldn't be hard to overpower Neil and take the underwear back, but he'd have to act quickly.
Rob began to remove Neil's black shoes, noticing how big they are. With Neil's size 14 shoes tossed to the side, Rob noticed for the first time how tall Neil actually was. He was twig thin and pale beyond belief, but he was lanky and thin, and had to be at least 6'4". Rob slowly removed Neil's unnecessarily tight skinny jeans as Neil tossed a little, but he was still unconscious. With the jeans tossed to the side too, all that was left was the underwear. Rob felt a little weird about seeing Neil naked, but he didn't want to lose his new muscles and decided that it would be worth it. Rob's hands reached towards the underwear when suddenly, the waistband started to change color. The letters of "Calvin Klein," were being replaced with "Supreme." The underwear changed shape and Neil's eyes shot open.