I personally don't see Monica's bates as any different from Sofie's. It migh be "real", in the sence of them actually climaxing from it, but they certanly make a huge event out of it, dressing up, possitioning themself, exaggerating expressions and moans. To me, it is abit too much show.
Maybe surprizingly, but I'm actually more found of Kristy's bates, and esspecially now that she hides less. It is more reallife to me, for self-pleasure and not in any way a show.