mood: probably like horniness? i cood make it so that if you don't have sex for a while, she gets a horny expression instead of a neutral expression
sleep disruption: sure, if you can convince me that this is sexy. just know that a lot of code is made with the assumption that you are asleep at 4am so mileage may vary
rent: logically wouldn't this also mean that you would need a penalty for not being able to afford rent? and streaming was designed to be optional, or at least not something that you'd be pressured into doing regularly. i would prefer a different money sink
food variety: absolutely
lactation: realistically it would have to be tied to some sort of visual indicator, or people would find it very unsatisfying. i say this because i myself would find it unsatisfying. the thing is that KK has no graphic for this in studio iirc, and just simulates it in sex mode by creating independently-fired milk particles