The analysis of the rise of bukkake porn seems like it's missing a few logical steps. How does sperm being "lethal and dirty...What better thing to eroticize than something dangerous" transform into the "organic food movement"?
Instead of demonstrating that the man cumming cares about the health of his partner (as it might if he were practicing safer sex) it signifies the lack of care and control over the partner. It doesn't matter if his partner gets sick or dies as long as he gets off. --AA 09/11