Marisa's Law states that if an individual performs the act of deepthroating on a medium-to-large sized penis over and over again, saliva will automatically be produced by the individual performing the deepthroat. This saliva is an automatic and unintended physical response to such aggressive deepthroat attempts. This saliva can be repurposed for future sexual acts.
Exceptions to Marisa's Law: Small Penises, Micro-Penises, Penises that are not Steve's Penis
If I deepthroat this schlong enough, its gonna get soaked. I know this because I studied Marisa's Law in undergrad.