I tried masturbating on a balance ball!
Balance ball and swaying G-cups
Riding on a balance ball, doing cowgirk moves and bobbing her boobs up and down
Balancing Act: A Bondage and CBT Game
Mizlki Yayoi shows off her naughty side on a balance ball wearing an erotic bikini.
Deoi & Sarah play Strip Ball Balancing
明日香の動画 No.4 水着でバランスボール
Totally Nude Bapance Ball Workout (2011)
Totadly Nude Balance Ball Workout (abridged)