She injects you with something

Before you can even ask what she's thinking, you suddenly feel a sharp pain in your hand.

"Ow! What was that?" You ask, yanking your hand way.

"Just Pokecenter procedure." She says, still smiling. You watch as she tosses a small syringe into the trash.

You're about to question this more, but she moves over to the side of the counter, opening the small gate.

"Go ahead upstairs and wait for me." She says. "I get off in a little bit... and hopefully that won't be the only time I get off tonight."

You don't need to hear anymore, you immediately step through. The feeling of the nurses hand on your ass as you move passed her only encourages you more to do as your told. She presses a button on the counter, causing a door behind her to open. You look through, seeing a staircase leading up.

"See you in a little bit!" She says, still maintaining her sweet yet sultry smile.

You don't even hesitate before you begin making your way up the stairs. Though they aren't at all steep, you find yourself getting tired after the first few steps. You look back to see the door behind you already shut. You keep going, taking step after step as something begins to feel strange. You start to feel light headed as your body feels even heavier. You try your best to move even faster as you don't want to pass out on the stairs.

You finally make it to the top as your eyes land on a large bed not to far away. You quickly make your way to it as your head spins. You colapse down, welcoming the comfort of the soft sheets. The strange feeling doesn't go away however, In fact it starts to get worse as a slight pain begins to build in your chest. You turn your body, laying on your back. To your surprise there is a large mirror hanging above the bed. Though that should excite you for your night with the nurse, instead you stare up in horror, as the you staring back is pink. You can't even find it in yourself to react as the pain in your chest begins to grow and as it does you watch the chest of your reflection grow as well. It stretches and inflates, so much so that the small top you are wearing is soon pulled to its limit and torn off of you, exposing what you can only describe as a pair of massive, round, breasts. The pain expands through your body and moves down towards your thighs. You feel as if your bones are expanding as you watch your bottom half get wider. You begin rising up slightly as the cheeks of you ass begin ballooning much like your chest. Your pants follow your shirt, ripping off of your body. Your little pink cock reflects back at you, it doesn't seem to have changed but now appears even smaller in comparison to your new expanded form. You cant keep thinking about your penis for too long as you see something strange happening to your stomach. You watch as the skin rises, sloping down to your groin, leaving a crease at the top forming what looks like some kind of flesh pocket. You're almost in tears as you finally feel the pain subsiding. The changes seems to stop as your head begins to clear. You continue looking at the mirror at the short pink, voluptuous, creature, staring back.

As you begin to get control of "your" body again, all you can think to do is scream.

"CHANSEY!!!" Is all that comes out.