And by PDA, I mean public displays of affection, which includes kissing, hugging, making out, etc. in public.

I have to be honest, it makes me uncomfortable. Just this past weekend, my sister and her boyfriend were over at our house, and they spent quite a bit of time curled up in one of the living room chairs smooching and snuggling. I was a little disquieted, but I didn't say anything.