mind everytime I see my friend? So the other day, this girl I know..lets call her...Bob, made a joke about 2 of my friends...who are sisters, who I will call...George and Bill. The joke Bob made was to imagine Bill and George having sex while sleep walking. And when Bill wakes up, she has cum on her face...this joke was funny at first. But its starting to really discust me. Whenever I see Bill and George, I always get kind of discusted and view them differently. >_< Why do I get so discusted when I see them still? How can I stop having this mental image coming into my head every time I talk to them?