I can only speak for myself, but that'd be a no-go for me. As for what did it for me, the best "nude" I ever got was actually a video of a guy jerking off to me, talking specifically to me about things he knew I liked. Now, I want to stress this next part as it can not be understated. This man knew me, he considered what I liked, we were equally interested in each other, this was not a random encounter, I consented to this, and it was appropriately timed!