>>13104235essentially external self-affirmation mixed with social taboo. mix eroticism with persistent memory and you have fetishes.
fetishes can easily be reduced to their emotional sensations. vore can easily be reduced to tactile sensations and juxtaposition of submission/domination. some people feel more comfortable giving up their control to someone else and some people feel more comfortable with their own control.
also narrowing desire means the more you consume erotic material, the more you'll want new material to appeal to your 'rawer' fetishes.
the real question is what fetishes would barney have?