Questions to ask yourself:
Why do I feel a need to shed the good girl image?
Am I really just in rebellion to what the parents expect of me?
Exactly what do I think a good girl is versus a bad girl?
While I will say at your age it is a healthy thing to explore your sexuality, what I mean is doing so by yourself at your age. Many states in the US have laws against minors engaging in sex together, not to mention what you can find on the internet in sex and porn sites. And yes I am aware that there are girls your age doing online porn. It is illegal. They cater to men your dads age and older who like to fantasize about sex with minors. It wouldnt take much for them to want to take it to the next level which would be statutory rape.
My advice is if this is something you just cant shake the notion of wanting to try and explore, then wait until you turn 18 and are of legal age...then do what you want.
However, if it's more of just struggling with what you understand a good girl to be...don't think that you or anyone else can tell what any female who seems like the 'good girl' is like behind closed doors with her lover. I still give off the good girl image. But in private, I am wild, sensual, teasing, etc... in how I talk to my honey, how I dress, and flirt and kiss and touch him during the times we are not in bed together.
What guys will be looking for once they mature a little and grow up and are ready to look for a life mate is a woman who is respectable enough to be seen in public with. SHe does not dress or act like a slut. But in private, she is a temptress and a tiger in bed and he will never tire of her.
For now at your age, I'd like to recommend a site done by a peer, shes 23 now and started in high school. Her site addresses sex and relationships. There are a lot of topics covered all in 3-4 min videos so watch what interests you. I have seen it all and recommend her to everyone including daughters and nieces because her info is correct, she's well informed and even I have learned a few facts i did not know before. She does her research but is cute and entertaining at the same time. Please check it out.
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