I am 98% bottom. I prefer to bottom and actually take a lot of pleasure out of it (I guess similar to what you might get when stroking your cock).
I cant say I have ever approached my porn scenes with a bottoming inspiration in mind...I bottom how I bottom, I find I am also very responsive to the top. I.e. if they want an intimate, passionate fuck then that's what they'll get. If they want a rag doll to throw around, then that's what they'll get.
There's a great scene coming up in a couple weeks with horsepapo, who is filthy.... watch that and then let me know what you think x