Yes, I agree with you. Moreover, when I said boys in my post, I did not mean all seven! I guess it could be two or three, the best artists. And the likely scenario of Xavier's absence, he invites Sophia to pose for the best naked in order to motivate them to further master the artistic skills. And Xavier himself will leave them for a while, so as not to embarrass Sophia with his presence.
Like this time, he will tell the children about the artistic power of the nude image of the goddess, what it is, what sivolizes, and so on. Xavier will invite Sofia to make the decision herself, like last time with bare breasts, remind her that she liked the last time and that her beauty is a strong motivation for young guys. He will say that he will leave her alone with the artists and, so as not to embarrass her, will leave the class for a while. And let her make her own decisions.
This is how I imagine the beginning, but I find it difficult to imagine how boys can go from drawing to touching Sophia.
This is quite difficult and if Sophia decides on her own, it is at odds with her relationship with Aiden. After all, he is trying to humiliate her, so probably somehow Aiden will force Sophia to let the boys touch her. For example, having appeared in the class at the moment when she poses naked for them.
This, again, is likely if Aiden and Xavieri are in collusion, which is completely possible.
But it is possible that L&P has some other solution both on this plot and in some direction unknown to us. I would like him to at least give a little hint with whom this WILD event will take place.