A Christmas Gift Audition

The person is upset because their brother gave them dumbbells for Christmas, even though they already have a gym membership and smaller weights at home. The brother claims the dumbbells are magic and the person decides to try them out. To their surprise, their arms become as big as their brother's. They continue to use the dumbbells and become even bigger, surpassing their brother's size. They taunt their brother about being taller and plan to keep increasing the gap between them. Seriously, big brother? You gave me dumbbells? For Christmas? You obviously know I have a gym membership, right? That is how I keep my body in such great shape, after all. And I've already got plenty of little weights like these for working out at home. Did you even think this through? What's that? They're magic dumbbells? Yeah, right. But fine, I'll humor you. How do they work? Oh, look at that. My arms are as big as yours now. Let's go ahead and make them a little bigger. Yes! Now I've got bigger biceps than you. The look on your face is priceless. What did you expect was gonna happen when you gave me these dumbbells? Thought I'd just get a little more toned and stop or something like that. Ha, no way. Time to see what my guns look like with even more size than this. They look even better than I imagined. Getting jealous? Just wait until I even them out with some tricep extensions. Your calves are starting to look kind of puny next to mine. But we need to go further. That's it. Bigger. And bigger. And bigger. Yes! Now I'm at least a couple inches taller than you. How's it feel looking up at your little sister for the first time in our lives? I gotta say that it feels right being the taller one between us. And I'll have to keep increasing that gap soon.