Brother becoming a Sister

I had always wondered what my sisters got up to some nights as I would hear them in their rooms laughing and talking quite loud. One day, I decided to ask them if I could join in on their fun some night as it sounded like they were having a ton of fun. They all told me that it's a girl only time and that no boys are allowed. I asked them if there was anyway I could join them, desperate to have fun for once instead of just sitting in my room alone and having to hear them. One sister says there is a way, but it won't be an easy choice. She tells me their is a pill that supposedly can change a persons genders. I say I will do it, maybe a little too quickly as I watch surprise spread across their face. That was a week ago and look at us now. Oh, that's me in the green tanktop by the way. I can now join them whenever I feel like now with my supply of pills and I'm even happier that I'm the hottest in the group now!