Outdoor Cream Pie
Reality sex is not a reserved theme, not even a discrete thing. Due to the existence of female and male pollinic humanoids, they travel just like pollen via the air and just when they find a receptive human they start their process of fertilization or at least that's what they intend to do. It's just normal to see them everywhere and every time, there are only few ways to avoid them, so almost anybody is catched up.
Added: November 6, 2012