So about this post I've seen, it's gotten me confused. Is Vriska right in saying nothing can touch a sprite that hasn't been prototyped twice? Because John high-fived harlequinnsprite p early on. And if you can only safely touch your own then how are Jadesprite and Davesprite things?
Prototyping mechanics have not been explored that much in canon, but there is a theory that for a living person to be prototyped they have to be willing like Dave, the Jade that got prototyped was dead so she didn’t need to be willing.
Another theory is that for a person to be prototyped they have to actively jump into the sprite.
Maybe Vriska actually believes that if you touch a sprite at all you get prototyped, maybe she’s just being a dick, either way she’s wrong.