@Ritualist_dA
Whilst dedicated to the emperor they take no vows against romance and they are free to pursue relationships and even have children. There have been battle sisters in relationships in the lore.
@LavenderGhast
@Ritualist_dA
I do feel like there's a certain amount of 'it goes without saying' at play here though. Whilst they have no official vows, it seems to me the mentality of the average sister would not even consider it, because they live for the Emperor alone.
Having said that, maybe a nonβ¦