After the most recent revelations, Ruth does not need any spanking at all. Just a wee bit more temptation...I think it will be eventually. I guessing that spanking and pacification of Ruth will be required to open late-game content. So we have to wait several years.
I hope this happens rather soonish.
I'm rather conflicted here. Spanking is not my cup of tea. I follow this game nevertheless because it's just good.
And now Ruth, who really deserves a decent spanking, may suddenly turn into putty because of *spoiler* ?