You are the dude that went with the cheap 30 year old hor and said he's looking for a more expensive hor, so you started 2 years ago.
Yeah, I've looked this up and know about this type of fapping, and have interesting results:
1) If the sex-fantasy is with hookers or paid for sex transaction: It's fun.
2) If the sex-fantasy is with civvies, women I like in public, etc....: My jaws lock and I can't open my mouth without excruciating pain. It's like someone punched me in the mouth for doing that to them, lol!
My face is facing down on the pillow both times and how the nerves and the jaws work I guess are different depending on the sex-fantasy involved.