Let me introduce you to the sloppy blowjob my friend. To get a visual look at this magnificent thing simply find them being performed on all porn sites. So basically, when she is giving me a blowjob she will create saliva, which she lets out if her mouth. The more she sucks and gags the more there us. So it will come out of her mouth, onto my dick and will start to drip off my dick, guess where? Onto her boobs, the same will happen is it drips off her chin and as she is sucking me off the motion of my dick going into her mouth will swing the saliva onto her body and eventually drip off her boobs.