I've noticed the past couple weeks that it hurts and burns to pee after sex. I know most people directly jump to STD when the hear pain while peeing, but it only hurts the first time (maybe the second time but not as intensely) but never any other time until we have sex again. I always pee right after sex after learning the hard way with a uti and this is when the pain is experiencd. Is there something that could be wrong or is it just irritated from the friction??