What about handjobs and titjobs? EX counted them to the Oral category. Would that be ok for you or are there plans to add such "motorical" jobs as separate category?
And how is masturbation implemented now? Maybe have some general Horniness value that increases over time (how much depends on other values like Libido) and the higher the Horniness is, the bigger is the chance that the girl won't work on that shift and instead masturbate to lower the value significantly (until it builds up again). Girls who perform jobs that involve sexual contact as well as random rape will lower those values as well, so those girls have a much smaller chance of losing a shift due to masturbating.
Let's take things one step at a time, shall we please? The changes up to now have been laying the groundwork for changes to come. So far, I've kept velvet gloves on as far as making changes to the core gameplay. Even ripping out Beastiality and replacing it with Oral skill and image category was not much more than replacing references to one with the other, and adding the three other additional image categories didn't change much.
The one major change I've made now is limiting customers to certain areas if your fame is too low, and introducing brothel reputation which gradually moves toward last turn's customer happiness. Once I have some 100% compatible girl packs to release with my game, I'll be releasing the game with this change to see if the change is working as intended and figure out how it affects the balance of the game, and what else I'm going to have to change to keep the game moving in the direction I intend.
I'm one person here. Don't expect me to make sweeping changes to the game all at once, and don't expect me to get to the changes you want me to immediately if at all.