How would you classify games where you just give out your girls (Doesn't have to be love interests, slave/mind break also applicable) to others for a certain benefit like sexual gratification, status, money, knowledge etc? Prostitution and pimping are obvious but if the benefit doesn't involve money it wouldn't be prostitution I believe. For example in Grolokk you are a goblin and you collect these wenches into your harem, but you can also give them out to others for a certain benefit if you want to. It's kind of like netori, but as there's little emotional connection with the girl, it's a bit different. I think the main point of these situations is that the protag either initiates this deal, or is responsible to accept or deny it while the girl just obeys them.
Also, if you know of other games like this inform me please. Some I know are: NTR bunnies (although this is more netori and has the emotional stuff), Solvalley School, ExDe, Welcome to Erosland (kind of, not exactly), Harem Remastered, Trinity Fate and probably some more I don't remember.