The saliva thing is just so icky. Icky and deranged. I mean, who the heck comes up with this stuff?
I'd expect such scenario from artists like Paolo Serpieri. It's totally on the same level, but this manga has just more conventional art style and there is no fantasy elements.
Honestly, several years ago I found a copy of Druuna from my fathers workroom and ever since all that stupid erotic fanservice stuff that they put in comics makes me sick. Seriously, grow up.