She injects herself with the serum

Ming Zhao suddenly takes out another syringe. "Why should you get all the fun?"

She injects herself and stares into the mirror as I watch her reflection fade from view. Amazingly, I can still see her before me.

"I'm invisible too!" She hollers.

She turns to me and blushes. "Oh! I can… um… see you."

My reflection didn't reappear. "I guess this means we can see each other while using the serum."

"I guess it does."

She grows a mischievous smirk and begins to remove her labcoat. She presses a button on her phone to put on jazz music as she shakes her hips.

"What are you doing?" I ask, trying to conceal my growing erection.

"I can't walk around like this," she says. "We both have to be naked."

"But why are you dancing?"

"A girl's entitled to have a little fun. What, don't you like it?"

I feel my mouth go dry as she continues her striptease. She slowly peels off her shirt and shimmies out of her pants and shoes. Turning around, she slowly unsnaps her bra and tosses it to the side. At the end of the song, she sticks her backside out as far as it would go and slides her panties off, dragging her socks along with them.

She puts her hands on her hips and faces me, giving me a full view of her naked body. "Well? What do you think?"

"I-I-I think you look gorgeous!" I struggle to say.

She giggles at me. "Take your hand away. No one can see us."

I slowly comply, removing my hands and standing naked before her. She smiles at me, both out of compassion and lust.

"Well," she says, "let's have some fun."