Quite the lucky boyfriend, I'll add.
My girlfriend has also indulged my fetish and one way in particular sticks out.
Prior to fooling around, she went into the bathroom, played an audio clip of a 'catfight' that included some trash talking and cursing...
And then emerged into the bedroom, sporting a ripped open blouse, one boob popped out, disheveled hair and some strategically placed lipstick on her chest to mimic scratch marks.
Needless to say, I was one very happy camper as she told me all about the fight and "showed" me the evidence. These girls are keepers!
(There have also been the fantasy scenarios in the bedroom where she'll talk about a particular girl she saw in the laundry room, or at a store and will tell me what happened)