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Titty-to-pretty ratio (TPR) is a subjective measure of a female's overall physical attractiveness, weighted positively by the mass of titties. It is determined by the ratio of sweatermeat relative to facial attractiveness. A TPR of 10:10 is a perfect female, whereas a 0:10 is a perfect flat-chested female and a 10:0 is a ridiculously endowed butter face. A TPR threshold is a ratio of personal preference below which titty cannot exceed pretty for the purposes of copulation.
I'm temporarily lowering my Titty-to-pretty ratio threshold to 5-5 because we're in Iceland and here a 10 is a 5.
by negutits June 24, 2014
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