Not exactly ball busting but a technique that has served me well since I learned it.  When I was 19 and in college I was sitting around the dorm one night with a bunch of other girls.  The conversation became more sexual as the night wore on and the beer was consumed.  We discussed guys, their equipment, sexual techniques, how to be a memorable sex partner, etc.  I finally mentioned that all guys seem to want blow jobs and in general I had no problem with it except some guys got rough.  They…