Not in my bag of kinks, but if my partner decided to do the #1 .... you betcha. If she needed me to hose her down, no problem at all.

What could be fun is to have a game of seeing who could hold it the longest and then engage in some intimacy acts (shower sex time...)

Thanks for sharing what is an intimate and open moment that would make people go eww .... the reality is it is those people that can get a raised eye brow for being closed minded.