Things get a little wet in r/yiff when a comic about a naked anthropormorphic deer in a hot tub, supposedly masturbating in it using one of the jets that makes the pool bubbly, makes a person say that if they had a pussy, they too will do that. Another person says their thoughts and argues about it.

Mods can remove this if it doesn't qualify, I am a lurker for this subreddit and multiple others as shown here, so I thought this was good enough for it to be a first submission from me.