Hourglass and busty is what the position was designed for ...
I love hourglass women the best in the cowgirl position, the wider, fuller and bustier, the better. There is this
farce that fuller women are "too heavy" or "don't have enough energy." Total bullshit, especially more athletic full figured women (FFW), but even some rather unique FFW/BBW starlets.
My favorite of all-time is
Georgina Lempin. I'm sure a lot of people don't know her, or don't think much of her. But she was a BBW that had a serious amount of stamina when it came to riding cowgirl/reverse cowgirl.
But in more recent years, before she retired from H/C, you definitely had to love
Cassandra, and I offer this as "proof":
http://monsterloads.sexseries.com/movies/072704/cassandra3/cassandra.html
More of my love,
Bozena just totally knocks me on my ass with her action. Here are a pair of vids:
http://www.hardcorevideos.org/fat/fat05/fatqxgrqg.html
http://free.ocxxx.com/movies/taj/taj03_c/
But if you can, find the video to this red corset pictoral -- definitely a major highlight of her "ability":
http://galleries.maxxandmore.com/cumonjugs/02/01/
And while Bang Bros
Anna doesn't seem to have a major amount of energy, she does roll her ass and hop fairly well:
http://www.gonzo-movies.org/mi/magic-bb-bsana_ridedeep/index.htm