You know that old anecdote that, when you have sex with someone, you're really sleeping with everyone they've ever had sex with? Well, if you've ever wanted to feel like the goddamn whore of Babylon or...say, any of these fine fellows from this notable list of Man Slores, look no further than Sex Degrees of Separation.
Input your basic sexual history, and the algorithm multiplies it to "illustrate the exponential effect of sexual contact." They increase your original number by the number of partners your partners have likely had, and theirs, and so on and so forth.
This is all an attempt to raise awareness of the spread of STIs, but really we think it's just to make you feel like shit. Or, you know, to give yourself a little pat on the back. Either way.