Nah, the god in that shrine had a bet with his buddy fox gods.
"Bet you 50 bucks she pisses herself."
"No way, not a chance. Look at her. She looks like a fucking honor student."
"I'm telling ya bruh..."
"Alright, you're on."
...
"Us dammit"
In Brazil, we have a saying that when it's Sunny and it rains it's a "widowers(female) wedding" (if i'm not mistaken widowers wedding means something to witchcraft);
I have a feeling that the author got close to the limit of what the publisher allows and now has to stick to pissing to not cross this line.
At least she checked his boner offscreen, right after the kiss. And based on her smile, she was satisfied.