I'm a little grossed out by kissing/making out, even on TV, and definitely in real life. I think I realized just how much I was when I saw a couple in my school's hallway up against a locker and being super lovey-dovey. They weren't even kissing, but I still thought it was gross.
I don't care what people want to do as long as they do it in the privacy of their homes! I think it's fine to hold hands and stuff in public, but when they start making out in the middle of the street, I want to barf.