This is something I said before, but I am not sure to enjoy the coloring of this one. It could also be your scanner having troubles though. Yet I am still impressed by those sadisticly delicious ideas of yours (and of your fans, as this is a request) and by the precision of your drawings.
BTW, can I put a little suggestion which would be totally in adequation with the theme of this one ? Why wouldn't you put a girl on a treadmill, forcing her to run barefoot on a soft (tickling ?) surface for hours, with feathers constantly tickling her sides and underarms. That would be lovely, and would make a good match with those previous series you drew, the "enema cycle".
Anyway, it is always a pleasure to see your works. Keep it up !