Getting fucked by a guy with a PA was my first introduction to a PA. It was pure heaven! That is when I knew I had to get a PA. That happened 20 years ago. Unfortunately in those 20 years I haven't been fucked by a PA again.
As for the guys I have fucked with my PA, I have had plenty of guys that were turned on by the PA. The few guys I met that weren't into the PA, I would take it out and they were fine with that. There has only been 1 guy that was turned off by the PA. That happened in an adult bookstore. He was cruising me, and since I am always cock curious, when he went into a booth, I went into the adjoining booth. When I pulled my dick out, he saw the PA and he immediately started screaming. He ran out of his booth and down the hallway screaming like a girl. He was very obnoxious.