frikken awesome.
I would have left the cock on the goth little bot girl.
her programming compels her to get more customers, but, keeping the real cock on under her new enhancements would drive her to want to do more.
if she feels a slight pleasure from using her cock on her clients, and slowly over time gets closer and closer to climax, and, only after 12 hours of continnual use she is able to climax, then she will want, need, desire to, on top of her drive and compulsion to use her cock even more and for longer.
plus they could enhance her seed to have addictive drugs in it, so every time she does cum inside or on her clients, they are left wife a feeling of euphoria, which slowly wears off leaving them feeling empty and low, wanting/needing to be used again to get that feeling back, a lovely loving cycle

Base +6