Her change room

You find Katy in her change room, just behind that big black door. To hide behind a coat rack, and, to your surprise, you find her totally naked, looking herself into a mirror. The image of Katy bare ass produce you a huge bulge in your pants. You pull your pants and underwear down, and you start to jerk off, and the noise that you do masturbating makes Katy notices your presence, and soon, she caught you jerking off behind the coat rack. Katy is surprised to see you there, and quickly covers her naked body with her hands:

Who the hell are you???, Katy said

You can't explain yourself, but Katy isn't seeing your cock. She's checking your cock.

Nevermind, she said. If you don't want to be kicked out of here right now by my security guards, just cover your eyes while I dress. You do that and soon enough she's fully dressed. You realizing that you're still with your pants down and with your hand grabbing your cock, so you try to hide your cock, but Katy stops you.

Since you saw me naked, I believe that's fair that I see you naked. Is that or my guards kick you out right now, she said.