Hang out in the bf's room after 6 - not a phone hang out. Choose to "talk about sex", then You have to keep drinking milkshakes at the friday parties and raising party popularity until you are prompted to "figure out the mystery" - for me this occurred about 3-4 parties after one of the guys there greeted my MC with a "flavored" shake. That, so far is the only way to advance, and that was with a female MC and male BF, too.To be honest, there's very little content with the BFF after and not really worth it, yet.
Is there a way for a female MC to advance that stupid quest WITHOUT having to drink those shakes? Because its absolute friggin bunk that my female MC has to guzzle those effing shakes, but all my male MC has to do is basically keep showing up.
Like I want an option for my high-intellect femMC to be able to try and get one of the guys to "take a sip" or something.