Last night, was nice to see. Ms. Yellow Pants finally relaxed and got what she "came" for. Jane was accommodating and joined in, but let her guest have her "Dick". More than once.
As I have said, her relationship with Katia (tip-toes) her live in guest is nowhere near that. Dick. Although he has the green light to be with her they do whatever in the half bath once they get started.
The difference, Jane doesn't join them as she did last night with Dick/YP then moving to bedroom.
Dick wants to be with her (Katia) alone and Jane allows it to a point. Who knows why. But that is not what she displayed last night, she was all in and satisfied by Dick too.
There's no telling if Jane will repeat last night's actions with Katia, but she is more than comfortable with YP having as much Dick as she desires.