Reverse Rusty Buggy
When you stick it in her ass and she is riding you reverse cowgirl and you reach up pull on her hair braids like they are buggy reins. Can also be upgraded using a real set of leather reins and a horse bit in her mouth. Bonus points if you use a riding crop to smack her as she is cumming.
Man this chick is wild. I had her doing a Reverse Rusty Buggy and she came so hard when I hit her with the whip I thought she was going to pass out.