I really like Jessica, so that's why I'm asking the possibility of having more sex scenes of her in the next updates. Or do you think there are too many sex scenes with her already?
Jessica is an old but iconic Darkhound1 girl.
At Rank 6 out of 23 girls she is a popular resort guest even after 6 years.
As to more sex events and when, that is a question that cannot be answered, because the answer will always be "it depends". But given her standing she is likely to do well, and no she does not have too many, she has an okay amount given she is a main and iconic girl.
The upcoming release 4.0 is focused on Lab, Boat and an unknown 3rd (speculation there could be the changing of the guards for the black girls or conversions or completed, as 4.0 is a main release, which usually make major changes or introduce new concepts)
Any Jessica in it would be a surprise as she is neither in need of any major change nor involved in the lab or boat