I was not aware of this until now, thanks to the wonderful folks at the Dissolve podcast. (NSFW, if only because you may giggle uncontrollably.)

BLADE 2 is the tongue, mouth, fingers and lips of a lover. The Audience is the clit... This is where Guillermo Del Toro goes down on the audience. It starts with long licks with a nose bump on the joy button slowly. He smiles as he does this…

And now I will never see Blade II or Guillermo del Toro in quite the same way again.