I think there is no Marc totally submissive route, she just allows Marc to be the dom against her sub when they have sex, the basketball team gangbang was to punish Marc and show him that she's the one in charge.
How do you figure that? Marc was the one who decided to share her with the basketball team. He told her to show up at the school, and told her to suck them all off, then told them that they could all fuck her. The only decision Myriam made was to go along with it and do as she was told. I don't see how that's her showing him that she's in charge. And I definitely don't see how her going along with his plan is her punishing him.
I know I'm somewhat late on replying but you're both right, there are 4 potential scenes here in total.
1) Myriam leaves and nothing happens
2) Myriam like Tom said, takes control and punishes Marc by letting the whole basketball team fuck her but not him
3) There is a scene where they get handsy and Myriam falls back on top of someone, in one path she leaves after it and nothing happens
4) Another option is instead of leaving Marc suggests she hurt his friend's balls and should make up for it, it leads to a gangbang scene where she is dominated by them all.
I'm not sure what points total you need but I think forgiving Anthony and believing his bull story about the women at work blackmailing him plays a part in path 4).
