Most Helpful Guys
Extravagant huh? Wait does it have to be a fantasy or something I've done?
Pursuit and capture scene (I've arranged a couple but things kept coming up at the last minute)
Ponygirl (potentially, the training just looks fun)
Total power exchange relationships (Master/slave)
Heavy impact play (bullwhip, canes)
Breathplay (I taught a workshop on it actually)
Plus many more I'm too lazy to list right now :P
I'm not sure if this qualifies as extravagant, but here goes.
Going out in public with my wife, but she is wearing double dildo panties in a vibrator, and I have the remote. No one can tell but us, and I repeatedly tease her and get her off well she has to pretend that nothing is happening.
Afterwards, we have a night of phenomenal sex.
Most Helpful Girl
It's a secret...