It does work like that (but the process is slow)

As Tanya blocked her breasts from view by Kyle's staring eyes she was hit with a wave of nausea. Her knees buckle a little and she needs to take a seat. "Woah, s-sorry, I suddenly feel sick."

Kyle's quick to grab a wastebasket and put it by her feet, "in case you need to puke."

"I don't think I'm gonna throw up but I really don't feel so well. Maybe I ate a bad banana."

The other two teens make eye contact. Kyle mouthes "do you think?" and Maggie shakes her head mouthing the words "no fucking way."

"I-I think I need to go home but I'm not sure I can drive. Can one of you take me?"

Maggie's quick to grab her keys. "Sure, when you're ready we can go."

The teen moans and groans as Maggie drives her across town. She keeps on eye on Tanya, mostly on her chest, and the other on the road. It doesn't look like anything his happening. That would be impossible, right?

When they get to her house Maggie walks her to the door. Tanya grabs her hand, "will you stay with me? My parents aren't home yet and I don't want to be alone."

Maggie blushes. She knows it's because of her command that Tanya wants her to stay but it still makes her feel like an important friend. "Sure, Tanya, happy to."

The girls go upstairs and Tanya climbs into her bed. Maggie sits in a chair and watches Tanya curl up and groan in agony. She begins to wonder if she should call the hospital.

"My breasts," Tanya moans, "I need to get my bra off. They hurt."

Maggie gets back up. She helps Tanya wiggle out of her top. The bisexual teen never thought this would be the way she'd finally see Tanya topless. It made her feel bad as she realized Kyle's command was actually working. "Your bra, too?" she asks.

"Please, it feels like my breasts are being squished. I'm so sorry you have to help me with this, Mags, I don't know what's going on."

Maggie unclasps Tanya's bra and it practically pops off. Having never seen Tanya's breasts before she couldn't tell if they were actually growing or not.

"Th-that's a little better, thank you," Tanya says placing her hands on her breasts and gently squeezing them in front of Maggie. "This helps. I'm just going to massage myself for a bit and see if they stop aching. Can you fo get me a wet, cold washcloth? I'm burning up."

Maggie nods and heads down the hall to Tanya's bathroom. As she searches for a washcloth she takes a second to text Kyle. "I think it worked. I don't know what to do. She seems really sick."

She brings the wet cloth back to Tanya and places it on her head. She looks at Tanya gently massaging her breasts and Maggie isn't sure but she thinks they may have grown a little bit. Again, she wonders if she should call the hospital but how would she explain it? "Well, Doctor, my friend commanded Tanya to have bigger tits so they started growing." She decides she should wait it out for a little bit longer and see what happened. If it seemed like she was getting sicker she'd call someone but for now, she couldn't risk others finding out about Tanya's condition.

Maggie grabs a book off Tanya's shelf and curls up in the chair. She fully intends to stay awake, but at some point, after Tanya falls asleep, she also dozes off.

Tanya isn't sure how long she was asleep but when her eyes flutter open she's surprised that they fall on Maggie sleeping in her armchair. The student feels better except her chest feels heavy and achy. She lifts the covers and looks underneath. Tanya is absolutely shocked to find herself looking down at a pair of breasts that are practically twice the size of what they used to be. Where she used to have two average apple-sized breasts she now had two cantaloupe-sized breasts. She felt her heart race as she poked one with her finger. It was firm. Tanya then threw the covers aside and sat up. She was shocked by the new weight she was carrying. And as it set in she couldn't help but scream, "WHAT HAPPENED TO MY BREASTS!!??"

Maggie wakes up to find Tanya sitting on the edge of the bed cupping her new set of tits. Maggie's jaw goes slack. They were cartoonishly big. They reminded her of the breasts she saw in a stash of porno mags called "Jugs" she discovered in her grandfather's basement. Her nipples were plump like gumdrops.

"WHAT THE FUCK IS HAPPENING?!?!" Tanya yells staring at Maggie.