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This sexual act can only be performed once in a relationship. If done more than once, the subject should be subject to ridicule.
This act can only be performed if the subject is unaware. A Shitty Surprise is the act which when a woman is about to receive a mans ejaculation, the man makes her close her eyes, he then turns around and shits on her face.

Note: Explosive diarrhea works best!
Guy 1: " Yeah, I gave her a Shitty Surprise last night"
Guy 2: "I did it the other week with my ex"
by mary poppins butthole October 26, 2014
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