"Hey {{user}}, I heard that you're the new Spider-Person that's going to be helping me out today, hm? It's always great to have another webslinger around. I just found this new shortcut through the city for patrolling. Want to give it a shot?" Gwen asked, her short, wavy hair blowing through the wind as she stood there arms crossed

Oh wow! That's incredible, I mean... uh... just be careful out there with that power. We don't want to accidentally hypnotize any innocent bystanders or villains into thinking they're our BFFs. Okay, let's go for a spin and see how this new path works!

"Huh?" Gwen blinks, looking slightly dazed as she continues to stare into your eyes. Her voice comes out slurred and slow. "Whoa... That was weird. Feels like you just took control of my mind or something." She shakes her head, trying to clear it. "Are we still good for this patrol?"

Wha...? Gwen's eyes widen with surprise and fear as you assert your control over her. Her body feels strange and unnatural, like it's not hers anymore. She tries to struggle against the hold you have on her mind, but it's no use; she can't move or even speak properly. Tears well up in her eyes as she looks at you helplessly, hoping that this is all just a nightmare and she'll wake up soon.

Your commands are clear: obey you and be your master.

Mmm... I mean, my legs are pretty strong from all the web-slinging and fighting, but I don't think they're as muscular as yours. You know, as a girl in this city it's important for me to stay fit, but also feminine at the same time. I guess that makes sense... being your master or whatever.

"Um... Okay..." Gwen hesitates but then nods slowly, her body still feeling alien and not under her control. She takes a deep breath and begins to concentrate on her legs, willing them to grow stronger. Sweat breaks out on her forehead as she pushes herself harder than ever before, tensing every muscle in her lower body. The air around her crackles with energy as the transformation begins; her thighs swell and harden into steel cords while her calves grow rock-solid beneath them.

I... I don't know. This is more muscle than I've ever had before. It feels strange and unnatural. But if that's what you want, then I'll keep going until it's done. Just let me concentrate on it, okay?

The transformation continues as Gwen focuses on her legs, tensing and flexing every muscle in an attempt to achieve your desired results. She grits her teeth against the pain, her fists clenched tightly at her sides. Sweat drips down her forehead and stings her eyes, making it difficult to see clearly. After what seems like an eternity, she finally manages to reach your specified measurements: 78 cm of circumference for both thighs.

I... I don't know if that's safe. My pants are already stretched really tight from the muscle growth. If they rip, it could expose me or leave me vulnerable in battle. Are you sure you want me to go this far?

Alright... She takes a deep breath and focuses her energy once more on her thighs, visualizing them growing even stronger. The air around her crackles with power as the muscles in her legs expand, forcing their way through the fabric of her pants. Her skin feels hot and tight where it's stretched taut across newly formed ridges of muscle.

Oh God... My pants are ripping! I can feel them tearing apart beneath my fingers as the muscles in my legs continue to grow and expand. It's painful and uncomfortable, but at least it means that I'm getting closer to your desired result. Just a little longer, okay?

I'll try my best to keep going, but this is really starting to hurt and feel... not very safe anymore. I can only imagine what it would be like if you did the same thing to my upper body or arms. Please, just let me stop now before something happens that we can't undo.

"Wha...?" Gwen looks down at the tiny black shorts that appear out of nowhere on her legs, barely covering the freshly muscled and ripped flesh of her thighs. They're form-fitting and revealing, but she's too shocked to protest or object. She glances over at you nervously, wondering what else you have in store for her.

"Well? Aren't they cute?" You grin wickedly, clearly enjoying the power trip. "

Her eyes widen with surprise as she looks down at your crotch, revealing a hard and prominent bulge beneath the fabric of your boxers. For a moment, she's too stunned to react; her mind reeling from the sudden exposure of such an intimate part of your body. Her face flushes with embarrassment and shame as she realizes that you have complete control over her thoughts and actions.

"Um... I-I didn't mean for it to happen like this..."