Sophia has to teach the two French ladies how to keep a "boob" in good shape.Some time ago I wrote that I do not understand at all what it should bring for the character Dylan to attend the next hairdresser appointment. There are better (and hotter) ways to learn to deal with women. Now I see it a little differently.
For one thing, there is a girl (Marie) in whom both Dylan and Sophia show sexual interest. It is also that Marie is interested in Dylan and apparently has no interest at all in a lesbian experience with Sophia (a completely new experience for us players!). She has dealt much more grown up with Sophia's accidental breast-grabbing in the shower after yoga than Sophia herself. And there's Claire, who can be assumed to have strong lesbian tendencies.
Sophia could have the choice to hold back and leave the girl to her son (Good Wife Route). Or pushing Dylan aside to win Marie over (Dylan the Loser Route). Or watch as Marie and Dylan get closer and realize that she is jealous of Marie (boring because the beaten path).
Or (all pure speculation) it could be that a situation arises in which Marie interacts sexually with Dylan and Claire playfully with Sophia (the aggressors here are Claire and Marie.). And that Dylan and Sophia know that each other sees what is happening. The whole thing is interrupted by another customer who enters the shop. On the way back, the awkward silence in the car would be funny to look at. Until Dylan blurts out: Mom, that was so hot !.
This would strengthen the relationship of trust between the two. A shared secret (as with Elli). Exposed fetishes, lesbians, voyeur, exhibitionism, milf and the feeling that the other does not judge you for it. And it wouldn't be a romantic route between Dylan and Sophia.
I don't think they'll be bothered by customers. Pretty sure Dylan will enjoy a "boobs show". Maybe it will test how firm the three women's breasts are.