I think the mistake I made with Mary was that I should have hinted towards extras when I was at full mast or even tipped her prior to the massage since she didn't bother collecting payment until after the massage. I would give it another shot and see if I could make progress with her. TBH it's not super expensive for what you there.
Are you referring to the house in Newton (4007)? The owner still messages me every now then when they get new talent which is my cue to give it another shot in hopes of finding more gems haha. Almost every girl there offers extras, its just a matter of convincing them
If anyone knows any places similar to this, please let me know.