I have done this a couple of times also. Both were in response to 2 different guys who wanted to see more "specific" shots.
The first guy wanted a better picture of my boobs so I shot the pics as I played with them, running my hands over my tits, dipping fingers in and out of my pussy and elsewhere. The guy sent emails telling me how great I looked and what he would do to me if I were there. The whole experience was very erotic for me. It was the first time that I really got into taking nude pictures and posting them. Of course, I benefitted from the heat after the session!
Cian