Oh My God, Yes!
I've just been thinking about this because of a couple recent situations. When I was modeling for an art class, I did the first part of the class nude, then the last couple hours were just a portrait session, focusing from the neck up. So, the teacher, who has a wonderful British accent, said, "If you would put your clothes back on, that would be just great." Even thought she was asking me to get dressed, it was such a thrill. I'm always very professional, but that was very fun for me.
Some of the first CFNM porn I came across was from one of the British groups, and the accents really do it for me, indeed. I love Brit porn.
I also love some Asian accents, especially in their matter-of-fact manner of speaking. No nonsense, which I find arousing, especially when undressing or telling someone to undress. And, some Latino accents, and African ones, too, can be hot.
International flavor is great in sex!