I didn't jump on this one (how homoerotic was that!) the first time around, but I'll propose a thought experiment since those are apparently pretty reputable here: I'm flipping through cable at a house I'm housesitting and I'm totally unaware of the channels they get. I flip through reruns of friends, seinfeld, there's gotta be one show to watch, I just want to laugh after a long day, flip, flip, then naked muscular male standing in a medium shot in a porno valley style back yard with mountains behind him and he looks just so virile and ahhh (not a tit, a pussy, a pigtail to be seen). I click the channel up button faster than ever before. Eyes wide. Body frozen. "Whooaaaa....that was out of context."
"But wait, suddenly I feel something...like something's been triggered in my brain, why is it that I feel like a boned-up bull ready for mount??"
Yeah, that last part probably wouldn't happen for me. I just saw a naked man with an erect penis when I had not been searching for porn, in the mood for porn, and certainly not expecting to come across porn. I've just turned on the tv so I've hardly had time for the sexy garnier commercials and the ones for cialis where the chick is way too hot for the husband and I think "pssh I could fuck that guys wife." It's the words you use man. Titillate? To stimulate or excite (someone), esp. in a sexual way? That's exactly where I'm drawing the line. There is no stimulation, no excitement, no titillation.