Shower sex.

Seems soooo hot, right? All that water cascading around you like endless, temperate rain? All that soaking hair and glistening body parts? Not to mention totally efficient — you can get clean and *~*dirty*~* at the same time! RIGHT?!?

Wrong. The best case scenario is that one of you hogs all the water, the medium scenario is that you get soap in your eye/unmentionables, and the worst is that one of you slips and falls and you have to go to the emergency room soaking wet and freezing in the cold January night.

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