Stay at the hospital, for now

"And where do we go? I can carry you anywhere in the world!" She exclaimed happily. Before you answer her last are finally processed by your mind. She is willing to not just be your lover but a servant?... Perhaps a ****? You had to test it. Leaving could wait.

"So you are ready to be a servant, huh? What if I am a pervert who wants an obedient submissive fucktoy giving nothing in return?" You felt fear saying that, if such words will break the spell you could get yourself into trouble.

"I'd be honored to serve you as a fucktoy, Master." Supergirl replied without hesitation. Her voice was as happy and cheerful as before "Just tell me how you want me and enjoy it"

This was getting better by the second and you forgot about any caution. "I want to ravage your alian tight ass. After all your body can't be damaged by a mere human, right?", you dig your fingernails into her butt intentionally trying to cause pain and having no idea if you can even make her super durable body really feel pain. Your dick was twitching already with excitement, eager to take its place in her tight hole.

"No, not really, Master." Supergirl replied, her voice still cheerful "You can also whip me, beat me, **** me in any way you desire, and your toy will stay intact! I will be a far better than any human sex doll!"

The last line sent chills up your spine because it was true. You were about to own a woman who was basically a goddess, controlled through your scent alone. If only you knew the limits of your powers, if it will work forever. If it won't fade away with time or with Supergirl not being exposed to your pheromones anymore. In any case, you went too far away to stop now.

"You're wonderful, Supergirl. I'll keep what you said in mind, my slut" You complimented her in a way that would make almost any girl cringe. "By the way, what are you wearing under this? I always was curious about that."

"You called me your slut!" The beautiful hero cried out, a bright happy smile on her face. "Thank you! You're so great, master. And as for what I'm wearing underneath... Let me show you!" She exclaimed jumping back on her feet.

You may have been the first man to see the supergirl taking off her suit, showing her stunning alien body to you. She did have some underwear: a pair of red panties and a blue bra, matching the colors of her superhero suit. "Do you like my body, master?" Supergirl asked hopefully.

You couldn't believe that she called you a master so casually, that she was seemingly unbothred to undress here, in a hospital, that she was doing this for you just because of some chemicals. Your control over her seemed to be limitless