meaning of Barresi Principle

Barresi Principle meaning in Urban Dictionary

whenever evaluating attractiveness of girls in a possible threesome one must make use of the following equation:((x*0.20)+(y*0.20))+zx=The total hottness of very first woman (0-10 scale)y=The total hottness of second girl (0-10 scale)z= Normal hottness of this two women (0-10)/2