Well, the very first decision you have to make in GGGB is if that Jersey Shore celebrity is "hot" or not for the MC. It is realistic that the MC knows a Jersey Shore celebrity by chance and he hits on her. It would not be realistic the MC meets, I don´t know, Brad Pitt, and hits on her. The second one is if the MC is really in love with her boyfriend or she's thinking in finding someone better. The third one, if she's actually so close to her best girlfriend, or not.
I have never said that "the good girl path" is boring. I say that in real life, the most plausible path would be the MC not even knowing a celebrity and staying in college with her boyfriend and her friends. But that would not be a game at all. In a game, something must happen.
As I have already said, she's a young, naive and inexperienced girl. She has been a good girl because she actually has not had the opportunity of being bad in her life. At the moment of the start of the game, the parents of the girl are going to divorce and the mother goes away from home, the father is unemployed and can't pay for her scholarship, and her boyfriend is about to go to another country for several months. It's a point of inflexion in her life that can psychologically destabilize a young girl - or boy - and make her prone to change her behaviour and start neglecting their studies for partying, consuming drugs, developing an obsession with social media and being promiscuous. It happens every day. Over all if there are some bad influences in her life, as her friend Jessica (I think that's her name) and a bunch of frivolous Jersey Shore celebrities. It's called social pressure. Girls that make porn, escorts, wannabe celebrities and wannabe social media influencers, etc. did not were born that way. Most of them were "good girls" (and boys). I recomend you this documental about it:
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I find the script of GGGB way more professional than any other script in a game of this kind. It starts with a very solid and realistic premise that develops in some unrealistic paths that can be avoided if you prefer stay close to reality. At least (I´m sorry, but I have to say it), the author doesn't have to use totally unrealistic and artificial resources as a genetic mutation that makes people unable to resists their sexual urgences and obliges them to attend to a special school for sexual freaks.