Is spit sexy (NSFW)

I had the occasion to watch some porn this weekend. I haven’t watched porn in years (it does nothing for me) and I have to say I do not remember people spitting on other people’s junk so much. I get that it’s for lubrication, but does the spitting have to be so obvious? It goes so far as to show the spit dribbling from the mouth down to the whatever. Do people think spit is sexy? WTF? I don’t get it.