Just my mere speculation....
They will probably have to talk (on Dylan's cuckold path) about what happened just before in the Sam room.
In my opinion, all that looking out the window on Sophia's part during the last event with Sam is prodromal to there being someone in the Parker house looking in the direction of the Robinson house (Dylan). Probably the famous cliffhanger of the last event with Sam could resolve with Sophia naked, hiding behind the curtains (those long, thick black curtains in Sam's room seem to be there just for that), crossing the gaze of her son who has unexpectedly come home early.
This might be a good time (once she blows off steam) to talk it over with Dylan and find out that, all things considered, he doesn't mind so much. Revealing to his mother this cuck fantasy of his towards her, at this point in the game (if I have correctly interpreted some rumors I read a few pages ago in this thread) would, in my opinion, also make some sense if we think that L&P apparently plans to introduce into the story (starting from the next playable day) the DLC of Sophia coaching Dylan's soccer team (whose main purpose seems precisely to be to fulfill her son's cuck fantasies).