Tell Jim you are his sex-genie

You wait till Katy leaves and then transform into Krystal in the hallway. You then enter Jim's room, seeing him laying on his bed, masturbating. In shock he says "Krystal, what are you doing here? Did Katy let you in? Why are you here?" In shock he lets his mobile phone fall on the floor and you could see a picture of Krystal in her thight sport clothes. "You are jacking of to Krystal?" You ask, not really amazed. "Wait, are you talking about yourself in third person?" "What? Me? Krystal? No, I'm your personal sex-genie. Because you don't have any chances with real woman, I came to let you life your sex-fantasies. I don't know how long I'll be here. You can do whatever you want with me. I can transform into anything and anyone you want." If this works, you can life out this horny boys fantasies, you will get a lot of sex with that .... You love it. And after a couple of minutes you see in his face that he believes you. You look at him.

"Master, what is your first wish?"