"...I was going to give it to you, babe." you answered.
"Really, thank, hun. But could it be dangerous?" she asked. She seemed really worried.
"I hope not." you answered. "Also I just don't want to lose my lovely girlfriend on her special birthday."
"Me either, honey." your girlfriend replied as she gives you a kiss on your cheek.
"But anyway, no matter what happened to you, it won't be dangerous, I promise. Besides, I got the reverse fomula right here in my pocket." you respond as you show her.
"Okay, that's great to hear, honey. And by the way, how does it taste?" your girlfriend asked.
"I don't know, maybe you're about to find out." you answered as she looks kinda worried and shaking her body. When she opens the formula, she drinks all of the liquid inside the small bottle. "So how does it taste, babe?"
"Wow, it tastes really sweet, y'know likes candy." your girlfriend answered as she's relief.
"I'm glad to hear that." you replied as you look at her who still fine and you still don't see the change of your girlfriend yet. "So, um... how do you feel now, babe?"
"Well, now you're saying this, I do feel kinda hot and my whole body is tingling." your girlfriend answered as she holds her body. And then you see her skin actually started to shift strangely, you know that the fomula starts to affect on your girlfriend's body.