On Wednesday night I met a man at the hotel bar, and followed him back to his room. Once there he masterbated me only for about 5 mins. There was nothing oral and no intercourse. Right after I left I started to feel some irritation on my penis (not sure if it was just in my head or nerves). Its about 42 hours later and I still feel some irritation. My question is could you start to feel an STD this soon? Is it possible to get an STD from only being masterbated. Thanks for your help.