Nothing really phases me anymore and hasn't for a very long time now.
I still dont like seeing anyone fucking dogs, but I've watched it before, I rather watch horses, sheep. Not that I do but if I had to I rather see any other animal besides a dog.

Even the shit videos dont bother me anymore and they did at one time.
You do get desensitized, it happens, and happens without you even noticing, well for me anyway.
Although watching whores guzzle glasses full of sperm still nauseates me, it doesnt bother me other than making me want to puke. So maybe that does affect me, but I can watch it, and have and still do. Melissa Lauren is one of the best cum swallowers and one of my favorites. One movie she went to a neighbors to borrow a cup of sugar, and there were like 8 guys there, needless to say she got her sugarbowl filled and drank it....she started gagging a bit and had a little hard time getting it down but being the trooper she is, it all went into her perfectly flat tummy.