Grow some more right in front of her

"Well maybe if you butter me up I'll help you grow with what I'm on, it seems to work great!" you said. You had your phone in hand down at your side, trying to not make it obvious as you occasionally glanced down at it to make another change. You had it set to take another inch of height and size from your brother to grow you two, which would officially make you six feet tall. Still, taking just height and some proportional size wouldn't be nearly enough. Your brother was pretty muscular, and you were going to have to change that and take some of his strength directly as well.

You scrolled to the setting for muscle and hit the plus button a few times, draining off two pounds of muscle from your brother so you'd gain four. With no idea how it would feel or how much that was exactly, you hit confirm just as you looked up at Felicia, your body slowly beginning to warm up.

"It said one of the side effects is delayed growth spurts though. Guess they take a while to kick in, so sometimes I'll just be going about my normal day and the supplements kick in and I'm getting bigger."

The warmth spread throughout your body once again, and just like before you felt every muscle you had growing hot as it expanded. This time the feeling seemed to last longer than before and you did your best to hide your delight. Taking a drink of your tea helped to mask how great it felt as your body was growing stronger. In the span of a few seconds it was like you'd just gone to the gym for an hour every day for a few weeks straight. You tried not to make it obvious as you glanced down, seeing muscles in your forearms that you'd never noticed before and a bulge to your bicep that certainly hadn't been there before. You were by no means a body builder now, but the difference from your scrawny and weak starting point was massive. Even better though was how it made you feel. You felt more energetic and stronger, even as you simply stood on display for your brother's wife you felt more powerful than ever before.

"I, uhh, think it's working now or something," Felicia said, looking you up and down slowly. It was amazing to see her, normally so calm and confident, be so thrown off and surprised. "Do they kinda, uhh, make you taller too?" she asked, and you smiled a tiny bit as you were looking down into her eyes. It wasn't by much, but as the growth subsided you were ever so slightly taller than her.

"Holy shit you're fucking taller than me!?" she blurted out. You couldn't help but laugh at her reaction, but you also saw it as an opportunity to get closer to her. You took a giant step forward, her chest just barely touching yours as you raised a hand up. You moved it to the top of her head, then brought it to the top of your head to more accurately compare height.

"Huh, guess I am," you said as you smiled down at her. You scrambled for an explanation, saying it was probably just due to working out the back muscles and fixing posture, or that it was growing your leg muscles, hoping she wouldn't think about how you'd magically grown half a foot taller since showing up on her doorstep.

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