A rare subset of omorashi: omorashi with pipelining. When there's a connection from a girl's bladder to her mouth, if she lets out enough pee she ends up drinking her own holy water. I find it quite hot, especially if the pee travels along other parts of her body in the process, and she gets so excited from the taboo feeling that she ends up cumming (and therefore letting out even more pee) as in this pic.

I translated it:
https://gelbooru.com/index.php?page=post&s=view&id=11987387