<human>: Many years ago, I came across the game of "baseball" in the sexual sense. First base is kissing, second is touching, third is oral sex, and a home run is intercourse. Pretty widely accepted to my knowledge. Recently a friend used the term "shortstop" to describe the halfway point between second and third (fingering/handjobs) and it immediately caught on with me and the majority of my friend group. 

I understand that most of the people on reddit aren't high school/college age and probably don't dwell on these kinds of things too much, but  I'm wondering if this is common terminology. And on that note, are there other additions/changes to "baseball" that you use?

Can you give me the gist of the text in a nutshell?
<bot>: First base is kissing, home run is sex. Does anyone else say shortstop is fingering/handjob? Other additions/changes?