I need to do more research and test to see if it was truly a one time fluke...... but.... It did induce an orgasm!
But, yesh.... me and my girlfriend at my best friends house discovered a thing.... >:3 and it is beautiful

As I said though, I must research this further before I say anything conclusively... I will share with you all if this is proven to be a thing... But I thoroughly rummaged through google to see if what we did was a /thing/, and... it has been mentioned here and there, but not how to preform the action or how individuals came upon it.... So, we may be pioneers in this new sexually stimulating action~ X3