The best and safest solution was to buy a new shower curtain (clear) each time you had a new partner and cut a hole in the middle and place it between you.
On completion you dispose of the shower curtain, ask the person to leave and vacate the room for 72 hours.
the act of shotgunning either Natural Light, Rolling Rock, Blue Light, or an acceptable substitute while simultaneously cleansing oneself in the shower.
Matt wanted to pregame kegs and eggs but hadn't showered yet, so he showergunned a few cans of natty and was good to go.