Before going to the room where this gangbang was going to take place, Grace and Anna first went to take a bath. But it was not just any normal bath.
There was a large bathhouse in the church where the priestesses mostly went to clean themselves but there was a second, more special bath. This bath was only used by priestesses who were going to take part in a ritual.
The difference between this bath and the regular one was in its water. Instead of normal water, the special bath had "Holy Water of Lust" in it.
This holy water of lust was a very valuable thing. Outside the church, both ladies and gentlemen would be a willing to pay a lot of gold coins in order get some this water. But the church used this as just special bath water.
As for what this holy water actually was, according to the judgement of various head priestesses, it was the overflowing love juice of goddess Eshtar.
