I am fine with a nice load shot on my butt cheeks.  One place I don't like it? In my MOUTH.  Icky.  Just.  Can't.  I will do just about any crazy, over the top fantasy you want to come up with, but CIM? Just about my one and only limit.  
Unless you in into vomit also and want to see me throw up everywhere.  Your kink is projectile vomit? Let's chat!!!!